5,429 results match your criteria Nanoscale research letters[Journal]


Enhanced Si Passivation and PERC Solar Cell Efficiency by Atomic Layer Deposited Aluminum Oxide with Two-step Post Annealing.

Nanoscale Res Lett 2019 Apr 18;14(1):139. Epub 2019 Apr 18.

Department of Physics, OSED, Xiamen University, Xiamen, 361005, China.

In this study, aluminum oxide (AlO) films were prepared by a spatial atomic layer deposition using deionized water and trimethylaluminum, followed by oxygen (O), forming gas (FG), or two-step annealing. Minority carrier lifetime of the samples was measured by Sinton WCT-120. Field-effect passivation and chemical passivation were evaluated by fixed oxide charge (Q) and interface defect density (D), respectively, using capacitance-voltage measurement. Read More

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http://dx.doi.org/10.1186/s11671-019-2969-zDOI Listing

Preparation and Evaluation of Liposomes Co-Loaded with Doxorubicin, Phospholipase D Inhibitor 5-Fluoro-2-Indolyl Deschlorohalopemide (FIPI) and D-Alpha Tocopheryl Acid Succinate (α-TOS) for Anti-Metastasis.

Nanoscale Res Lett 2019 Apr 18;14(1):138. Epub 2019 Apr 18.

Institute of Medicinal Biotechnology, Chinese Academy of Medical Science and Peking Union Medical College, Beijing, 100050, China.

Tumor metastasis has become a key obstacle to cancer treatment, which causes high mortality. Nowadays, it involves multiple complex pathways, and conventional treatments are not effective due to fewer targets. The aims of the present study were to construct a novel liposome delivery system co-loading a specific PLD inhibitor 5-fluoro-2-indolyldes-chlorohalopemide (FIPI) in combination with antitumor drug doxorubicin (DOX) and functional excipient D-alpha tocopheryl acid succinate (α-TOS) for anti-metastasis. Read More

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http://dx.doi.org/10.1186/s11671-019-2964-4DOI Listing

Synchrotron X-ray Absorption Spectroscopy Study of Local Structure in Al-Doped BiFeO Powders.

Nanoscale Res Lett 2019 Apr 18;14(1):137. Epub 2019 Apr 18.

Key Laboratory of Semiconductors and Applications of Fujian Province, Collaborative Innovation Center for Optoelectronic Semiconductors and Efficient Devices, Department of Physics, Xiamen University, Xiamen, 361005, People's Republic of China.

The Al-doped BiFeO, i.e., BFAO powder samples with x = 0, 0. Read More

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http://dx.doi.org/10.1186/s11671-019-2965-3DOI Listing

A Simple Electrochemical Route to Access Amorphous Co-Ni Hydroxide for Non-enzymatic Glucose Sensing.

Nanoscale Res Lett 2019 Apr 17;14(1):135. Epub 2019 Apr 17.

Institute of Nuclear Physics and Chemistry (INPC), China Academy of Engineering Physics (CAEP), Mianyang, 621999, People's Republic of China.

Among the numerous transition metal hydroxide materials, cobalt- and nickel-based hydroxides have been extensively studied for their excellent electrochemical performances such as non-enzymatic electrochemical sensors. Binary cobalt-nickel hydroxide has received extensive attention for its exceptionally splendid electrochemical behaviors as a promising glucose sensor material. In this work, we report the synthesis of three-dimensional amorphous Co-Ni hydroxide nanostructures with homogeneous distribution of elements via a simple and chemically clean electrochemical deposition method. Read More

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https://nanoscalereslett.springeropen.com/articles/10.1186/s
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http://dx.doi.org/10.1186/s11671-019-2966-2DOI Listing
April 2019
1 Read

Fabrication of polydimethylsiloxane nanofluidic chips under AFM tip-based nanomilling process.

Nanoscale Res Lett 2019 Apr 17;14(1):136. Epub 2019 Apr 17.

Center for Precision Engineering, Harbin Institute of Technology, Harbin, 150001, Heilongjiang, People's Republic of China.

In current research realm, polydimethylsiloxane (PDMS)-based nanofluidic devices are widely used in medical, chemical, and biological applications. In the present paper, a novel nanomilling technique (consisting of an AFM system and a piezoelectric actuator) was proposed to fabricate nanochannels (with controllable sizes) on PDMS chips, and nanochannel size was controlled by the driving voltage and frequency inputted to the piezoelectric actuator. Moreover, microchannel and nanochannel molds were respectively fabricated by UV lithography and AFM tip-based nanomilling, and finally, PDMS slabs with micro/nanochannels were obtained by transfer process. Read More

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https://nanoscalereslett.springeropen.com/articles/10.1186/s
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http://dx.doi.org/10.1186/s11671-019-2962-6DOI Listing
April 2019
1 Read

Nanofabrication of High-Resolution Periodic Structures with a Gap Size Below 100 nm by Two-Photon Polymerization.

Nanoscale Res Lett 2019 Apr 17;14(1):134. Epub 2019 Apr 17.

Institute of Quantum Optics, Leibniz Universität Hannover, Welfengarten 1, Hannover, 30167, Germany.

In this paper, approaches for the realization of high-resolution periodic structures with gap sizes at sub-100 nm scale by two-photon polymerization (2PP) are presented. The impact of laser intensity on the feature sizes and surface quality is investigated. The influence of different photosensitive materials on the structure formation is compared. Read More

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http://dx.doi.org/10.1186/s11671-019-2955-5DOI Listing

Improved Ferroelectric Performance of Mg-Doped LiNbO Films by an Ideal Atomic Layer Deposited AlO Tunnel Switch Layer.

Nanoscale Res Lett 2019 Apr 16;14(1):131. Epub 2019 Apr 16.

State Key Laboratory of ASIC & System, School of Microelectronics, Fudan University, Shanghai, 200433, China.

Bilayer structures composed of 5% Mg-doped LiNbO single-crystal films and ultrathin AlO layers with thickness ranging from 2 to 6 nm have been fabricated by using ion slicing technique combined with atomic layer deposition method. The transient domain switching current measurement results reveal that the P-V hysteresis loops are symmetry in type II mode with single voltage pulse per cycle, which may be attributed to the built-in electric field formed by asymmetric electrodes and compensation of an internal imprint field. Besides, the inlaid AlO, as an ideal tunnel switch layer, turns on during ferroelectric switching, but closes during the post-switching or non-switching under the applied pulse voltage. Read More

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https://nanoscalereslett.springeropen.com/articles/10.1186/s
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http://dx.doi.org/10.1186/s11671-019-2970-6DOI Listing
April 2019
1 Read

Flexible Transparent Electrodes Based on Gold Nanomeshes.

Nanoscale Res Lett 2019 Apr 16;14(1):132. Epub 2019 Apr 16.

School of Petrochemical Engineering, Changzhou University, Changzhou, 213164, Jiangsu, People's Republic of China.

The transmittance, conductivity, and flexibility are the crucial properties for the development of next-generation flexible electrodes. Achieving a good trade-off between transmittance and conductivity of flexible electrodes has been a challenge because the two properties are inversely proportional. Herein, we reveal a good trade-off between transmittance and conductivity of gold nanomesh (AuNM) can be achieved through appropriately increasing the AuNM thickness no more than 40 nm, the mean free path of electrons in Au metal. Read More

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http://dx.doi.org/10.1186/s11671-019-2973-3DOI Listing

The Potential Application of BAs for a Gas Sensor for Detecting SO Gas Molecule: a DFT Study.

Nanoscale Res Lett 2019 Apr 16;14(1):133. Epub 2019 Apr 16.

School of Mechanical and Electrical Engineering, Guilin University of Electronic Technology, Jinji Road No.1, 54100, Gui, China.

Different atmospheric gas molecules (e.g., N, O, CO, HO, CO, NO, NO, NH, and SO) are absorbed on the pristine hexagonal boron arsenide (BAs) through density functional theory calculations. Read More

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http://dx.doi.org/10.1186/s11671-019-2972-4DOI Listing

Fluorescent Nano-Biomass Dots: Ultrasonic-Assisted Extraction and Their Application as Nanoprobe for Fe detection.

Nanoscale Res Lett 2019 Apr 15;14(1):130. Epub 2019 Apr 15.

Henan Key Laboratory of Diamond Optoelectronic Materials and Devices, School of Physics and Engineering, Zhengzhou University, No. 75 Daxue Road, Zhengzhou, 450052, People's Republic of China.

Biomass as sustainable and renewable resource has been one of the important energy sources for human life. Herein, luminescent nano-biomass dots (NBDs) have been extracted from soybean through ultrasonic method, which endows biomass with fluorescence property. The as-prepared NBDs are amorphous in structure with an average diameter of 2. Read More

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https://nanoscalereslett.springeropen.com/articles/10.1186/s
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http://dx.doi.org/10.1186/s11671-019-2950-xDOI Listing
April 2019
3 Reads

Shape-dependent cytotoxicity and cellular uptake of gold nanoparticles synthesized using green tea extract.

Nanoscale Res Lett 2019 Apr 11;14(1):129. Epub 2019 Apr 11.

College of Pharmacy and Inje Institute of Pharmaceutical Sciences and Research, Inje University, 197 Inje-ro, Gimhae, Gyeongnam, 50834, Republic of Korea.

In the present report, three different shapes of chitosan-capped gold nanoparticles (nanospheres, nanostars, and nanorods) were synthesized to investigate the effects of shape on cytotoxicity and cellular uptake in cancer cells. Green tea extract was utilized as a reducing agent to reduce gold salts to gold nanospheres. Gold nanostars were prepared using an as-prepared nanosphere solution as a seed solution. Read More

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http://dx.doi.org/10.1186/s11671-019-2967-1DOI Listing

On the Baliga's Figure-Of-Merits (BFOM) Enhancement of a Novel GaN Nano-Pillar Vertical Field Effect Transistor (FET) with 2DEG Channel and Patterned Substrate.

Nanoscale Res Lett 2019 Apr 11;14(1):128. Epub 2019 Apr 11.

School of Information and Software Engineering, University of Electronic Science and Technology of China, Chengdu, 610054, People's Republic of China.

A novel enhancement-mode vertical GaN field effect transistor (FET) with 2DEG for reducing the on-state resistance (R) and substrate pattern (SP) for enhancing the breakdown voltage (BV) is proposed in this work. By deliberately designing the width and height of the SP, the high concentrated electric field (E-field) under p-GaN cap could be separated without dramatically impacting the R, turning out an enhanced Baliga's Figure-Of-Merits (BFOM, BV/R). Verified by experimentally calibrated ATLAS simulation, the proposed device with a 700-nm-long and 4. Read More

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http://dx.doi.org/10.1186/s11671-019-2960-8DOI Listing

Recyclable and Flexible Starch-Ag Networks and Its Application in Joint Sensor.

Nanoscale Res Lett 2019 Apr 5;14(1):127. Epub 2019 Apr 5.

Institute for Advanced Materials, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou, 510006, China.

Flexible transparent conductive electrodes are essential component for flexible optoelectronic devices and have been extensively studied in recent years, while most of the researches are focusing on the electrode itself, few topics in material green and recyclability. In this paper, we demonstrate a high-performance transparent conductive electrode (TCE), based on our previous cracking technology, combined with a green and recyclable substrate, a starch film. It not only shows low R (less than 1. Read More

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http://dx.doi.org/10.1186/s11671-019-2957-3DOI Listing
April 2019
1 Read

Ge pMOSFETs with GeO Passivation Formed by Ozone and Plasma Post Oxidation.

Nanoscale Res Lett 2019 Apr 5;14(1):126. Epub 2019 Apr 5.

State Key Discipline Laboratory of Wide Band Gap Semiconductor Technology, School of Microelectronics, Xidian University, Xi'an, 710071, People's Republic of China.

A comparison study on electrical performance of Ge pMOSFETs with a GeO passivation layer formed by ozone post oxidation (OPO) and plasma post oxidation (PPO) is performed. PPO and OPO were carried out on an AlO/n-Ge (001) substrate followed by a 5-nm HfO gate dielectric in situ deposited in an ALD chamber. The quality of the dielectric/Ge interface layer was characterized by X-ray photoelectron spectroscopy and transmission electron microscopy. Read More

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http://dx.doi.org/10.1186/s11671-019-2958-2DOI Listing

Germanium Negative Capacitance Field Effect Transistors: Impacts of Zr Composition in HfZrO.

Nanoscale Res Lett 2019 Apr 4;14(1):125. Epub 2019 Apr 4.

State Key Discipline Laboratory of Wide Band Gap Semiconductor Technology, School of Microelectronics, Xidian University, Xi'an, 710071, China.

Germanium (Ge) negative capacitance field-effect transistors (NCFETs) with various Zr compositions in HfZrO (x = 0.33, 0.48, and 0. Read More

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http://dx.doi.org/10.1186/s11671-019-2927-9DOI Listing

Formation of Monodisperse Carbon Spheres with Tunable Size via Triblock Copolymer-Assisted Synthesis and Their Capacitor Properties.

Nanoscale Res Lett 2019 Apr 3;14(1):124. Epub 2019 Apr 3.

School of Physics and Electronics, Central South University, Changsha, 410083, China.

A facile hydrothermal polymerization method has been developed for the preparation of monodisperse carbon spheres (MCSs) using the triblock copolymer F108 as surfactant. The synthesis is based on the ammonia-catalyzed polymerization reaction between phenol and formaldehyde (PF). The resultant MCSs have a perfect spherical morphology, smooth surface, and high dispersity. Read More

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http://dx.doi.org/10.1186/s11671-019-2952-8DOI Listing
April 2019
5 Reads

Demonstration of High-Power and Stable Single-Mode in a Quantum Cascade Laser Using Buried Sampled Grating.

Nanoscale Res Lett 2019 Apr 3;14(1):123. Epub 2019 Apr 3.

Key Laboratory of Semiconductor Materials Science, Beijing Key Laboratory of Low Dimensional Semiconductor Materials and Devices, Institute of Semiconductors, Chinese Academy of Sciences, P.O. Box 912, Beijing, 100083, China.

High-power, low-threshold stable single-mode operation buried distributed feedback quantum cascade laser by incorporating sampled grating emitting at λ ~ 4.87 μm is demonstrated. The high continuous wave (CW) output power of 948 mW and 649 mW for a 6-mm and 4-mm cavity length is obtained at 20 °C, respectively, which benefits from the optimized optical field distribution of sampled grating. Read More

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http://dx.doi.org/10.1186/s11671-019-2954-6DOI Listing

Effect of orientation on polarization switching and fatigue of BiNdTiMnO thin films at both low and elevated temperatures.

Nanoscale Res Lett 2019 Apr 2;14(1):121. Epub 2019 Apr 2.

School of Electronic Information Engineering, Yangtze Normal University, Chongqing, 408100, China.

BiNdTiMnO (BNTM) thin films with (200)-orientations, (117)-orientations, and mixed-orientations were prepared by sol-gel methods. The influence of orientations on polarization fatigue behaviors of BNTM thin films were systematically investigated at both low and elevated temperatures. It was found that the changed trends of the polarization fatigue of (200)-oriented and (117)-oriented BNTM thin films at elevated temperatures were opposite. Read More

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http://dx.doi.org/10.1186/s11671-019-2949-3DOI Listing
April 2019
2 Reads

Atomic Layer Deposition of Buffer Layers for the Growth of Vertically Aligned Carbon Nanotube Arrays.

Nanoscale Res Lett 2019 Apr 2;14(1):119. Epub 2019 Apr 2.

SMIT Center, School of Automation and Mechanical Engineering, Shanghai University, Shanghai, 201800, People's Republic of China.

Vertically aligned carbon nanotube arrays (VACNTs) show a great potential for various applications, such as thermal interface materials (TIMs). Besides the thermally oxidized SiO, atomic layer deposition (ALD) was also used to synthesize oxide buffer layers before the deposition of the catalyst, such as AlO, TiO, and ZnO. The growth of VACNTs was found to be largely dependent on different oxide buffer layers, which generally prevented the diffusion of the catalyst into the substrate. Read More

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http://dx.doi.org/10.1186/s11671-019-2947-5DOI Listing
April 2019
1 Read

Horizontally Aggregation of Monolayer Reduced Graphene Oxide Under Deep UV Irradiation in Solution.

Nanoscale Res Lett 2019 Apr 2;14(1):117. Epub 2019 Apr 2.

State Key Laboratory of Precision Spectroscopy, East China Normal University, Shanghai, 200062, China.

Graphene has been widely used in novel optoelectronic devices in decades. Nowadays, fabrication of large size monolayer graphene with spectral selectivity is highly demanded. Here, we report a simple method for synthesizing large size monolayer graphene with chemical functionalized groups in solution. Read More

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http://dx.doi.org/10.1186/s11671-019-2940-zDOI Listing
April 2019
2.779 Impact Factor

Nanoscale Vertical Arrays of Gold Nanorods by Self-Assembly: Physical Mechanism and Application.

Nanoscale Res Lett 2019 Apr 2;14(1):118. Epub 2019 Apr 2.

School of Mathematics and Physics, Beijing Key Laboratory for Magneto-Photoelectrical Composite and Interface Science, Center for Green Innovation, University of Science and Technology Beijing, Beijing, 100083, China.

The unique photonic effect of self-assembled metal nanoparticles is widely used in many applications. In this article, we prepared self-assembled gold nanorod (GNR) vertical arrays substrate by an evaporation method and found that the morphology of the substrate can be effectively regulated by changing the immersion time in the target molecules solution to obtain different Raman enhancement effects. We separately calculated the local electromagnetic field of the GNR vertical arrays and disorder substrate by the finite element method (FEM), which was consistent with the experimental results. Read More

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http://dx.doi.org/10.1186/s11671-019-2946-6DOI Listing

New Insights on Factors Limiting the Carrier Transport in Very Thin Amorphous Sn-Doped InO Films with High Hall Mobility.

Nanoscale Res Lett 2019 Apr 2;14(1):120. Epub 2019 Apr 2.

Materials Design Center, Kochi University of Technology, Tosayamadacho-Miyanokuchi 185, Kami, 782-8502, Japan.

We demonstrated that a mass density and size effect are dominant factors to limit the transport properties of very thin amorphous Sn-doped InO (a-ITO) films. a-ITO films with various thicknesses (t) ranging from 5 to 50 nm were deposited on non-alkali glass substrates without intentional heating of the substrates by reactive plasma deposition with direct-current arc discharge. a-ITO films with t of more than 10 nm showed a high Hall mobility (μ) of more than 50 cm/V s. Read More

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http://dx.doi.org/10.1186/s11671-019-2948-4DOI Listing

High-Performance a-InGaZnO Thin-Film Transistors with Extremely Low Thermal Budget by Using a Hydrogen-Rich AlO Dielectric.

Nanoscale Res Lett 2019 Apr 2;14(1):122. Epub 2019 Apr 2.

School of Microelectronics, Fudan University, Shanghai, 200433, People's Republic of China.

Electrical characteristics of amorphous In-Ga-Zn-O (a-IGZO) thin-film transistors (TFTs) are compared by using O plasma-enhanced atomic layer deposition AlO dielectrics at different temperatures. High-performance a-IGZO TFTs are demonstrated successfully with an AlO dielectric deposited at room temperature, which exhibit a high field-effect mobility of 19.5 cm V s, a small subthreshold swing of 160 mV/dec, a low threshold voltage of 0. Read More

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http://dx.doi.org/10.1186/s11671-019-2959-1DOI Listing
April 2019
4 Reads

High-Performance CsPbIBr Perovskite Solar Cells with Zinc and Manganese Doping.

Nanoscale Res Lett 2019 Apr 2;14(1):116. Epub 2019 Apr 2.

School of Optics and Photonics, Beijing Institute of Technology, Beijing, 100081, China.

Photovoltaic performances of CsPbIBr solar cells are still lower than those of hybrid inorganic-organic perovskite solar cells, and researchers are exploring ways to improve their efficiencies. Due to its higher thermal stability in comparison with the generally studied hybrid inorganic-organic perovskites, all-inorganic CsPbIBr has recently attracted great attention. By utilizing the combination of MnCl and ZnCl particles doping to modulate film growth, it is found that MnCl and ZnCl particles infiltrate into the holes of the CsPbIBr lattice through the growth procedure, leading to suppressed nucleation and reduced growth rate. Read More

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http://dx.doi.org/10.1186/s11671-019-2936-8DOI Listing
April 2019
1 Read

Nanocrystal-Embedded-Insulator (NEI) Ferroelectric FETs for Negative Capacitance Device and Non-Volatile Memory Applications.

Nanoscale Res Lett 2019 Apr 1;14(1):115. Epub 2019 Apr 1.

State Key Discipline Laboratory of Wide Band Gap Semiconductor Technology, School of Microelectronics, Xidian Unversity, Xi'an, 710071, China.

We report a novel nanocrystal-embedded-insulator (NEI) ferroelectric field-effect transistor (FeFET) with very thin unified-ferroelectric/dielectric (FE/DE) insulating layer, which is promising for low-voltage logic and non-volatile memory (NVM) applications. The ferroelectric nature of the NEI layers comprising orthorhombic ZrO nanocrystals embedded in amorphous AlO is proved by polarization voltage measurements, piezoresponse force microscopy, and electrical measurements. The temperature dependent performance and endurance behavior of a NEI negative capacitance FET (NCFET) are investigated. Read More

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http://dx.doi.org/10.1186/s11671-019-2943-9DOI Listing
April 2019
2 Reads

Microstructure and Mechanical Properties of Graphene Oxide-Reinforced Titanium Matrix Composites Synthesized by Hot-Pressed Sintering.

Nanoscale Res Lett 2019 Mar 29;14(1):114. Epub 2019 Mar 29.

College of Aerospace Engineering, Chongqing University, Chongqing, 400044, People's Republic of China.

Ti matrix composites reinforced with 1-5 wt% graphene oxide (GO) were prepared by hot-pressed sintering in argon atmosphere. The effect of sintering temperature on the microstructures and mechanical properties of the composite was also evaluated. The results show that TiC nanoparticles were formed in situ as interfacial products via the reaction between Ti and GO during sintering. Read More

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http://dx.doi.org/10.1186/s11671-019-2951-9DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6441072PMC
March 2019
3 Reads

Suppression of Filament Overgrowth in Conductive Bridge Random Access Memory by TaO/TaO Bi-Layer Structure.

Nanoscale Res Lett 2019 Mar 28;14(1):111. Epub 2019 Mar 28.

Key Laboratory of Microelectronics Devices and Integrated Technology, Institute of Microelectronics, Chinese Academy of Sciences, Beijing, China.

Bi-layer structure has been widely adopted to improve the reliability of the conductive bridge random access memory (CBRAM). In this work, we proposed a convenient and economical solution to achieve a TaO/TaO bi-layer structure by using a low-temperature annealing process. The addition of a TaO layer acted as an external resistance suppressing the overflow current during set programming, thus achieving the self-compliance switching. Read More

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http://dx.doi.org/10.1186/s11671-019-2942-xDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6439017PMC

Heterostructure ReS/GaAs Saturable Absorber Passively Q-Switched Nd:YVO Laser.

Nanoscale Res Lett 2019 Mar 29;14(1):112. Epub 2019 Mar 29.

School of Information Science and Engineering, Shandong University, Qingdao, 266000, China.

Heterostructure ReS/GaAs was fabricated on a 110-μm (111) GaAs wafer by chemical vapor deposition method. Passively Q-switched Nd:YVO laser was demonstrated by employing heterostructure ReS/GaAs as a saturable absorber (SA). The shortest pulse width of 51. Read More

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http://dx.doi.org/10.1186/s11671-019-2953-7DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6439101PMC

Coding Anisotropic Metasurface with Integrated Broadband Tunable Radiation and Low-Scattering Performance.

Nanoscale Res Lett 2019 Mar 29;14(1):113. Epub 2019 Mar 29.

Air Force Engineering University, Xi'an, 710077, China.

In this paper, we propose a coding electromagnetic metasurface (EMMS) with integrated broadband tunable radiation and low-scattering performance. Anisotropic elements demonstrating opposite phases under x- and y-polarized incidence are investigated and coded as "0" and "1" basic elements. These elements are then arranged in an optimized layout using a simulated annealing algorithm to perform the EMMS. Read More

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http://dx.doi.org/10.1186/s11671-019-2944-8DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6439016PMC

Mapping the structural, electrical, and optical properties of hydrothermally grown phosphorus-doped ZnO nanorods for optoelectronic device applications.

Nanoscale Res Lett 2019 Mar 28;14(1):110. Epub 2019 Mar 28.

School of Electrical Engineering and Computer Science, Gwangju Institute of Science and Technology, Gwangju, 61005, Republic of Korea.

The phosphorus-doped ZnO nanorods were prepared using hydrothermal process, whose structural modifications as a function of doping concentration were investigated using X-ray diffraction. The dopant concentration-dependent enhancement in length and diameter of the nanorods had established the phosphorus doping in ZnO nanorods. The gradual transformation in the type of conductivity as observed from the variation of carrier concentration and Hall coefficient had further confirmed the phosphorus doping. Read More

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http://dx.doi.org/10.1186/s11671-019-2920-3DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6439072PMC

Tailoring Cell Morphomechanical Perturbations Through Metal Oxide Nanoparticles.

Nanoscale Res Lett 2019 Mar 28;14(1):109. Epub 2019 Mar 28.

Dipartimento di Matematica e Fisica "Ennio De Giorgi", Università del Salento, Via Arnesano, 73100, Lecce, Italy.

The nowadays growing use of nanoparticles (NPs) in commercial products does not match a comprehensive understanding of their potential harmfulness. More in vitro investigations are required to address how the physicochemical properties of NPs guide their engulfment within cells and their intracellular trafficking, fate, and toxicity. These nano-bio interactions have not been extensively addressed yet, especially from a mechanical viewpoint. Read More

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http://dx.doi.org/10.1186/s11671-019-2941-yDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6439097PMC

Anchoring Plasmonic Ag@AgCl Nanocrystals onto ZnCoO Microspheres with Enhanced Visible Photocatalytic Activity.

Nanoscale Res Lett 2019 Mar 26;14(1):108. Epub 2019 Mar 26.

Environmental and Safety Engineering Institute, North University of China, Taiyuan, Shanxi, 030051, People's Republic of China.

In this work, a comprehensive investigation of the composite Ag@AgCl/ZnCoO microspheres photocatalyst, prepared by a facile two-step method, is presented, and using complementary characterization tools such as X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive X ray spectroscopy (EDX), transmission electron microscopy (TEM), high-resolution transmission electron microscopy (HR-TEM), selected area electron diffraction (SAED), X-ray photoelectron spectroscopy (XPS), UV-Vis diffuse reflectance spectroscopy (DRS), and Brunauer-Emmett-Teller (BET). Results show that the composite Ag@AgCl/ZnCoO photocatalyst has good microspheres morphology and high crystalline and its absorption intensity in the whole spectrum range is higher than that of pure ZnCoO. It is observed that the specific surface area of the composite Ag@AgCl/ZnCoO photocatalyst and the adsorption efficiency of rhodamine B (RhB) increase as a result of deposition of Ag@AgCl. Read More

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http://dx.doi.org/10.1186/s11671-019-2922-1DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6435780PMC
March 2019
1 Read

Direct Growth of Graphene on Insulator Using Liquid Precursor Via an Intermediate Nanostructured State Carbon Nanotube.

Authors:
Pramoda K Nayak

Nanoscale Res Lett 2019 Mar 22;14(1):107. Epub 2019 Mar 22.

Department of Physics, Indian Institute of Technology Madras, Chennai, 600036, India.

Synthesis of high-quality graphene layers on insulating substrates is highly desirable for future graphene-based high-speed electronics. Besides the use of gaseous hydrocarbon sources, solid and liquid hydrocarbon sources have recently shown great promises for high-quality graphene growth. Here, I report chemical vapor deposition growth of mono- to few-layer graphene directly on SiO substrate using ethanol as liquid hydrocarbon feedstock. Read More

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http://dx.doi.org/10.1186/s11671-019-2935-9DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6430270PMC
March 2019
5 Reads

Chemical Vapor Deposition of Vertically Aligned Carbon Nanotube Arrays: Critical Effects of Oxide Buffer Layers.

Nanoscale Res Lett 2019 Mar 21;14(1):106. Epub 2019 Mar 21.

SMIT Center, School of Automation and Mechanical Engineering, Shanghai University, Shanghai, 201800, People's Republic of China.

Vertically aligned carbon nanotubes (VACNTs) were synthesized on different oxide buffer layers using chemical vapor deposition (CVD). The growth of the VACNTs was mainly determined by three factors: the Ostwald ripening of catalyst nanoparticles, subsurface diffusion of Fe, and their activation energy for nucleation and initial growth. The surface roughness of buffer layers largely influenced the diameter and density of catalyst nanoparticles after annealing, which apparently affected the lifetime of the nanoparticles and the thickness of the prepared VACNTs. Read More

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https://nanoscalereslett.springeropen.com/articles/10.1186/s
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http://dx.doi.org/10.1186/s11671-019-2938-6DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6428882PMC
March 2019
4 Reads

Angle-Insensitive Broadband Absorption Enhancement of Graphene Using a Multi-Grooved Metasurface.

Nanoscale Res Lett 2019 Mar 20;14(1):105. Epub 2019 Mar 20.

Key Laboratory of Advanced Micro-Structured Materials MOE, Institute of Precision Optical Engineering, School of Physics Science and Engineering, Tongji University, Shanghai, 200092, China.

An angle-insensitive broadband absorber of graphene covering the whole visible spectrum is numerically demonstrated, which is resulted from multiple couplings of the electric and magnetic dipole resonances in the narrow metallic grooves. This is achieved by integrating the graphene sheet with a multi-grooved metasurface separated by a polymethyl methacrylate (PMMA) spacer, and an average absorption efficiency of 71.1% can be realized in the spectral range from 450 to 800 nm. Read More

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http://dx.doi.org/10.1186/s11671-019-2937-7DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6426901PMC

Revisiting the Enhanced Red Upconversion Emission from a Single β-NaYF:Yb/Er Microcrystal By Doping with Mn Ions.

Nanoscale Res Lett 2019 Mar 19;14(1):103. Epub 2019 Mar 19.

College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha, 410073, China.

The presence of manganese ions (Mn) in Yb/Er-co-doped nanomaterials results in suppressing green (545 nm) and enhancing red (650 nm) upconversion (UC) emission, which can achieve single-red-band emission to enable applications in bioimaging and drug delivery. Here, we revisit the tunable multicolor UC emission in a single Mn-doped β-NaYF:Yb/Er microcrystal which is synthesized by a simple one-pot hydrothermal method. Excited by a 980 nm continuous wave (CW) laser, the color of the single β-NaYF:Yb/Er/Mn microrod can be tuned from green to red as the doping Mn ions increase from 0 to 30 mol%. Read More

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http://dx.doi.org/10.1186/s11671-019-2931-0DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6424991PMC

Hierarchical Structure Kaolinite Nanospheres with Remarkably Enhanced Adsorption Properties for Methylene Blue.

Nanoscale Res Lett 2019 Mar 19;14(1):104. Epub 2019 Mar 19.

School of Geoscience and Surveying Engineering, China University of Mining and Technology, Beijing, 100083, China.

Kaolinite nanospheres with hierarchical structures were synthesized via dehydration-rehydration technique through calcined-hydrothermal route. The microstructure of samples were characterized and analyzed by diverse techniques. The results show that after hydrothermal treatment, the layered pseudo-hexagonal kaolinite particles transformed to hierarchical structure nanospheres. Read More

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http://dx.doi.org/10.1186/s11671-019-2934-xDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6424992PMC

Atomic Layer Deposited HfZrO-based Flexible Memristor with Short/Long-Term Synaptic Plasticity.

Nanoscale Res Lett 2019 Mar 15;14(1):102. Epub 2019 Mar 15.

State Key Laboratory of ASIC and System, School of Microelectronics, Fudan University, Shanghai, 200433, China.

Artificial synapses are the fundamental of building a neuron network for neuromorphic computing to overcome the bottleneck of the von Neumann system. Based on a low-temperature atomic layer deposition process, a flexible electrical synapse was proposed and showed bipolar resistive switching characteristics. With the formation and rupture of ions conductive filaments path, the conductance was modulated gradually. Read More

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http://dx.doi.org/10.1186/s11671-019-2933-yDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6420527PMC
March 2019
1 Read

Silicon Nanowire Heterojunction Solar Cells with an AlO Passivation Film Fabricated by Atomic Layer Deposition.

Nanoscale Res Lett 2019 Mar 15;14(1):99. Epub 2019 Mar 15.

Department of Electrical and Mechanical Engineering, Nagoya Institute of Technology, Syouwa-ku, Nagoya-si, Aichi, 466-8555, Japan.

Silicon nanowires (SiNWs) show a great potential for energy applications because of the optical confinement effect, which enables the fabrication of highly efficient and thin crystalline silicon (c-Si) solar cells. Since a 10-μm-long SiNW array can absorb sufficient solar light less than 1200 nm, the 10-μm-long SiNW was fabricated on Si wafer to eliminate the influence of the Si wafer. On the other hand, Surface passivation of the SiNWs is a crucial problem that needs to be solved to reduce surface recombination and enable the application of SiNWs to c-Si solar cells. Read More

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http://dx.doi.org/10.1186/s11671-019-2930-1DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6420529PMC
March 2019
1 Read

High-Performance Cathode Material of FeF·0.33HO Modified with Carbon Nanotubes and Graphene for Lithium-Ion Batteries.

Nanoscale Res Lett 2019 Mar 15;14(1):100. Epub 2019 Mar 15.

School of Chemical Engineering and Light Industry, Guangdong University of Technology, No. 100 Waihuan xi Road, Guangzhou Higher Education Mega Center, Panyu District, Guangzhou, 510006, China.

The FeF·0.33HO cathode material can exhibit a high capacity and high energy density through transfer of multiple electrons in the conversion reaction and has attracted great attention from researchers. However, the low conductivity of FeF·0. Read More

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http://dx.doi.org/10.1186/s11671-019-2925-yDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6420562PMC
March 2019
1 Read
2.779 Impact Factor

Deposition of Antibody Modified Upconversion Nanoparticles on Glass by a Laser-Assisted Method to Improve the Performance of Cell Culture.

Nanoscale Res Lett 2019 Mar 15;14(1):101. Epub 2019 Mar 15.

Department of Chemical and Biochemical Engineering, University of Western Ontario, London, ON, N6A 5B9, Canada.

A suitable surface is vital for maintaining or even promoting cells' function and communication. Recently, studies show that nanostructured coatings could have a potential in improving cell adhesion. However, it hardly minimizes the contamination by using traditional solution-coating technology. Read More

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http://dx.doi.org/10.1186/s11671-019-2918-xDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6420592PMC
March 2019
3 Reads

Carrier Redistribution Between Two Kinds of Localized States in the InGaN/GaN Quantum Wells Studied by Photoluminescence.

Nanoscale Res Lett 2019 Mar 12;14(1):88. Epub 2019 Mar 12.

Suzhou Institute of Nano-tech and Nano-bionics, Chinese Academy of Sciences, Suzhou, 215123, China.

The InGaN/GaN multi-quantum wells (MQWs) are prepared at the same condition by metal-organic chemical vapor deposition (MOCVD) except the thickness of cap layers additionally grown on each InGaN well layer. The photoluminescence (PL) intensity of the thin cap layer sample is much stronger than that of thicker cap layer sample. Interestingly, the thick cap layer sample has two photoluminescence peaks under high excitation power, and the PL peak energy-temperature curves show an anomalous transition from reversed V-shaped to regular S-shaped with increasing excitation power. Read More

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http://dx.doi.org/10.1186/s11671-019-2919-9DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6419640PMC
March 2019
1 Read
2.779 Impact Factor

Antitumor Effect of I-Labeled Anti-VEGFR2 Targeted Mesoporous Silica Nanoparticles in Anaplastic Thyroid Cancer.

Nanoscale Res Lett 2019 Mar 14;14(1):96. Epub 2019 Mar 14.

Department of Nuclear Medicine, Tianjin Medical University General Hospital, No. 154 Anshan Road, Heping District, Tianjin, 300052, China.

Anaplastic thyroid cancer (ATC) comprises approximately 2% of all thyroid cancers, and its median survival rate remains poor because of its resistance to conventional therapy. Vascular endothelial growth factor receptor (VEGFR)-targeted therapeutics-loaded mesoporous silica nanoparticles represent a major advance for angiogenesis imaging and inhibition in lethal cancers. In the present study, we aimed to assess whether I-labeled anti-VEGFR2 targeted mesoporous silica nanoparticles would have antitumor efficacy in an ATC tumor-bearing nude mouse model. Read More

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http://dx.doi.org/10.1186/s11671-019-2924-zDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6419646PMC
March 2019
1 Read
2.779 Impact Factor

Three-Dimensional Carbon Nitride Nanowire Scaffold for Flexible Supercapacitors.

Nanoscale Res Lett 2019 Mar 14;14(1):98. Epub 2019 Mar 14.

Key Laboratory of Advanced Structural Materials, Ministry of Education and Advanced Institute of Materials Science, Changchun University of Technology, Changchun, 130012, China.

Herein, a 3D composite electrode supported by g-CN nanowire framework as scaffold and poly(3,4-ethylenedioxythiophene): poly(4-styrenesulfonate) (PEDOT: PSS) as conducting polymer is reported for flexible solid-state electrochemical capacitors. Compared to pure PEDOT: PSS, the composite electrodes have a greatly increased specific surface and showed good electrochemical performance. A specific capacitance of 202 F g is achieved, and 83. Read More

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http://dx.doi.org/10.1186/s11671-019-2932-zDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6419655PMC
March 2019
2 Reads

Reduced Graphene Oxide-Coated Si Nanowires for Highly Sensitive and Selective Detection of Indoor Formaldehyde.

Nanoscale Res Lett 2019 Mar 14;14(1):97. Epub 2019 Mar 14.

College of Physics and State Key Laboratory of Bio-Fibers and Eco-Textiles, Qingdao University, Qingdao, 266071, China.

Although significant developments have been made in the low-concentration formaldehyde monitoring in indoor air by using gas sensors, they still suffer from insufficient performance for achieving ppb-level detection. In this work, <100> oriented Si nanowires (SiNWs) with high specific surface area were prepared via metal-assisted chemical etching method (MACE), and then were uniformly coated with graphene oxide (GO) followed by the subsequent reductive process in H/Ar atmosphere at 800 °C to obtain reduced graphene oxide (RGO). The RGO coating (RGO@n-SiNWs) obviously enhances SiNWs sensitivity to low-concentration formaldehyde, benefiting from the increased specific surface area, the sensitization effect of RGO, and the formation of p-n junction between SiNWs and RGO. Read More

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http://dx.doi.org/10.1186/s11671-019-2921-2DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6419648PMC
March 2019
4 Reads

CuSe Modification onto Monoclinic BiVO for Enhanced Photocatalytic Activity Under Visible Light.

Nanoscale Res Lett 2019 Mar 14;14(1):95. Epub 2019 Mar 14.

Department of Materials, Taizhou University, Taizhou, 318000, China.

The rapid recombination of electron-hole pairs in BiVO has limited its performance as a photocatalysis. In this paper, BiVO is combined with CuSe semiconductor to slow down the recombination process, and thus improve its photocatalytic activity. This is enabled by careful band structure design. Read More

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http://dx.doi.org/10.1186/s11671-019-2929-7DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6419854PMC

Improving Magnetofection of Magnetic Polyethylenimine Nanoparticles into MG-63 Osteoblasts Using a Novel Uniform Magnetic Field.

Nanoscale Res Lett 2019 Mar 12;14(1):90. Epub 2019 Mar 12.

Laboratory of Molecular Oncology, Department of Surgery/Orthopedics Center, The University of Chicago Medical Center, Chicago, IL, 60637, USA.

This study aimed to improve the magnetofection of MG-63 osteoblasts by integrating the use of a novel uniform magnetic field with low molecular weight polyethylenimine modified superparamagnetic iron oxide nanoparticles (PEI-SPIO-NPs). The excellent characteristics of PEI-SPIO-NPs such as size, zeta potential, the pDNA binding and protective ability were determined to be suitable for gene delivery. The novel uniform magnetic field enabled polyethylenimine-modified superparamagnetic iron oxide nanoparticles/pDNA complexes (PEI-SPIO-NPs/pDNA complexes) to rapidly and uniformly distribute on the surface of MG-63 cells, averting local transfection and decreasing disruption of the membrane caused by the centralization of positively charged PEI-SPIO-NPs, thereby increasing the effective coverage of magnetic gene carriers during transfection, and improving magnetofection efficiency. Read More

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http://dx.doi.org/10.1186/s11671-019-2882-5DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6419855PMC
March 2019
2 Reads

Correction to: Complexation with C Fullerene Increases Doxorubicin Efficiency against Leukemic Cells In Vitro.

Nanoscale Res Lett 2019 Mar 13;14(1):91. Epub 2019 Mar 13.

Division Molecular Biotechnology and Functional Genomics, Technical University of Applied Sciences Wildau, Hochschulring 1, 15745, Wildau, Germany.

Following publication of the original article [1], the authors flagged that there was unfortunately an error with Fig. 3 of the article. Read More

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http://dx.doi.org/10.1186/s11671-019-2917-yDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6419633PMC
March 2019
1 Read

Formation Mechanism of Skin-Core Chemical Structure within Stabilized Polyacrylonitrile Monofilaments.

Nanoscale Res Lett 2019 Mar 13;14(1):93. Epub 2019 Mar 13.

State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology, Beijing, 100029, China.

Although it has been half a century since polyacrylonitrile (PAN)-based carbon fibers were first developed, the exact formation mechanism of skin-core structure of PAN-based carbon fibers, especially the stabilized PAN fibers, was still not well clarified from the viewpoint of the chemical structure. In order to address this aforementioned challenge, a powerful tool with nanoscale resolution named photo-induced force microscopy was applied to map the chemical group distribution in the cross section of stabilized PAN fibers and reveal the evolution mechanism of skin-core structure throughout the whole stabilization process. The results indicated that the formation of skin-core structure of stabilized PAN fiber was attributed to the complex and overlapped chemical reactions caused by gradient of oxygen along radial direction and the formation of dense crystal layer at the interface between the skin and core part. Read More

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http://dx.doi.org/10.1186/s11671-019-2926-xDOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6419634PMC
March 2019
1 Read

A Novel SERS Substrate Platform: Spatially Stacking Plasmonic Hotspots Films.

Nanoscale Res Lett 2019 Mar 13;14(1):94. Epub 2019 Mar 13.

Jiangxi Key Laboratory of Nanomaterials and Sensors, School of Physics, Communication and Electronics, Jiangxi Normal University, Nanchang, 330022, China.

Surface-enhanced Raman scattering (SERS) technique has presented great potential in medical diagnosis, environment monitoring, and food detection due to its high sensitivity, rapid response, and fingerprint effect. Many efforts have been concentrated on all kinds of strategies to produce efficient SERS platforms. Here, we report a simple and controllable method to produce large-area efficient SERS platforms with spatially stacked plasmonic hotspots. Read More

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http://dx.doi.org/10.1186/s11671-019-2928-8DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6419637PMC
March 2019
2 Reads