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Journal articles on the topic 'Nanostructured layer'

Author: Grafiati

Published: 28 May 2022

Last updated: 31 July 2025

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1

Chen, Yusi, Yangsen Kang, Jieyang Jia, et al. "Nanostructured Dielectric Layer for Ultrathin Crystalline Silicon Solar Cells." International Journal of Photoenergy 2017 (2017): 1–6. http://dx.doi.org/10.1155/2017/7153640.

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Nanostructures have been widely used in solar cells due to their extraordinary photon management properties. However, due to poor pn junction quality and high surface recombination velocity, typical nanostructured solar cells are not efficient compared with the traditional commercial solar cells. Here, we demonstrate a new approach to design, simulate, and fabricate whole-wafer nanostructures on dielectric layer on thin c-Si for solar cell light trapping. The optical simulation results show that the periodic nanostructure arrays on dielectric materials could suppress the reflection loss over a

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2

Gerbreders, V., M. Krasovska, I. Mihailova, et al. "Morphology Influence on Wettability and Wetting Dynamics of ZnO Nanostructure Arrays." Latvian Journal of Physics and Technical Sciences 59, no. 1 (2022): 30–43. http://dx.doi.org/10.2478/lpts-2022-0004.

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Abstract Changes in nanostructure morphology and size may result in very different surface wettability. In this research, the impact of different morphological parameters on the wetting dynamics of ZnO nanostructured layers is studied. Six different morphologies are chosen to determine the specific wetting processes of ZnO nanostructures: nanoneedles, small diameter rods, large diameter rods, nanotubes, nanoplates, and plain thin films. Wetting dynamics is investigated using conventional sessile drop technique and a novel approach based on electrochemical impedance spectroscopy. The results sh

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3

Dinh Lam, Nguyen, Youngjo Kim, Kangho Kim, and Jaejin Lee. "Influences of InGaP Conical Frustum Nanostructures on the Characteristics of GaAs Solar Cells." Journal of Nanomaterials 2013 (2013): 1–6. http://dx.doi.org/10.1155/2013/785359.

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Conical frustums with quasihexagonal nanostructures are fabricated on an InGaP window layer of single junction GaAs solar cells using a polystyrene nanosphere lithography technique followed by anisotropic etching processes. The optical and photovoltaic characteristics of the conical frustum nanostructured solar cells are investigated. Reflectance of the conical frustum nanostructured solar cells is significantly reduced in a wide range of wavelengths compared to that of the planar sample. The measured reflectance reduction is attributed to the gradual change in the refractive index of the InGa

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Mihailova, I., M. Krasovska, E. Sledevskis, et al. "Selective Patterned Growth of ZnO Nanoneedle Arrays." Latvian Journal of Physics and Technical Sciences 60, no. 6 (2023): 35–53. http://dx.doi.org/10.2478/lpts-2023-0035.

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Abstract Nanostructured coatings are widely used to improve the sensitivity of various types of sensors by increasing the active surface area compared to smooth films. However, for certain applications (in some cases), it may be necessary to achieve selectivity in the coating process to ensure that nanostructures only form in specific areas leaving interelectrode spaces free of nanostructures. This article discusses several methods for creating intricate ZnO nanostructured patterns, including area selective application of Zn acetate seeds followed by hydrothermal growth, selective thermal deco

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Bechelany, Mikhael, Sebastien Balme, and Philippe Miele. "Atomic layer deposition of biobased nanostructured interfaces for energy, environmental and health applications." Pure and Applied Chemistry 87, no. 8 (2015): 751–58. http://dx.doi.org/10.1515/pac-2015-0102.

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AbstractThe most fundamental phenomena in the immobilising of biomolecules on the nanostructured materials for energy, environmental and health applications are the control of interfaces between the nanostructures/nanopores and the immobilized biomaterials. Thus, the throughput of all those biobased nanostructured materials and devices can be improved or controlled by the enhanced geometric area of the nanostructured interfaces if an efficient immobilization of the biomolecules is warranted. In this respect, an accurate control of the geometry (size, porosity, etc.) and interfaces is primordia

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6

Cho, Seong J., Se Yeong Seok, Jin Young Kim, Geunbae Lim, and Hoon Lim. "One-Step Fabrication of Hierarchically Structured Silicon Surfaces and Modification of Their Morphologies Using Sacrificial Layers." Journal of Nanomaterials 2013 (2013): 1–8. http://dx.doi.org/10.1155/2013/289256.

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Fabrication of one-dimensional nanostructures is a key issue for optical devices, fluidic devices, and solar cells because of their unique functionalities such as antireflection and superhydrophobicity. Here, we report a novel one-step process to fabricate patternable hierarchical structures consisting of microstructures and one-dimensional nanostructures using a sacrificial layer. The layer plays a role as not only a micromask for producing microstructures but also as a nanomask for nanostructures according to the etching time. Using this method, we fabricated patterned hierarchical structure

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7

Schlur, Laurent, Pierre Agostini, Guillaume Thomas, Geoffrey Gerer, Jacques Grau, and Denis Spitzer. "Detection of Organophosphorous Chemical Agents with CuO-Nanorod-Modified Microcantilevers." Sensors 20, no. 4 (2020): 1061. http://dx.doi.org/10.3390/s20041061.

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Microcantilevers are really promising sensitive sensors despite their small surface. In order to increase this surface and consequently their sensitivity, we nanostructured them with copper oxide (CuO) nanorods. The synthesis of the nanostructure consists of the oxidation of a copper layer deposited beforehand on the surface of the sample. The oxidation is performed in an alkaline solution containing a mixture of Na(OH) and (NH4)2S2O8. The synthesis procedure was first optimized on a silicon wafer, then transferred to optical cantilever-based sensors. This transfer requires specific synthesis

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8

Kumar, B. Kranthi, and Nikhil Deep Gupta. "Analysis of nanostructured anti reflection coating for various perovskite layer thicknesses in perovskite silicon tandem solar cells." Materials Research Express 10, no. 12 (2023): 126201. http://dx.doi.org/10.1088/2053-1591/ad1077.

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Abstract The anti-reflection coating (ARC) plays an important role in the design of every kind of solar cell. The suitable optimization of the ARC layer can make a lot of difference in the final output of the cell, by reducing the reflections at the surface. In this regard, the present paper highlights and analyses numerically the effect of nanostructured ARC for different top perovskite layer thicknesses in perovskite-silicon tandem solar cells. In the present case, the nanostructures for ARC are considered to be made up of SiO2 nanoparticles (NP) embedded in ITO. To evaluate the effect of na

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9

Ibrahim, Marwa Hikmat, and Bassam G. Rasheed. "Improvement Silicon Nanostructured Surface by Laser Induced Etching Process." Al-Nahrain Journal for Engineering Sciences 22, no. 4 (2019): 323–28. http://dx.doi.org/10.29194/njes.22040323.

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Surface reconstruction of silicon using lasers could be utilized to produce silicon nanostructures of various features. Electrochemical and photoelectrochemical etching processes of silicon were employed to synthesize nanostructured surface. Effects of current densities 5, 10 and 20 mA/cm2 on the surface features were examined. It is found that the surface porosity and layer thickness increase with the current density. Moreover, large surface area of 410 m2/cm3 can be achieved when laser power density 0f 0.6 W/cm2 was used during the etching process. Optimum operating conditions were found to

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10

Gill, Hardeep Singh, Lian Li, Haizhou Ren, Ravi Mosurkal, and Jayant Kumar. "Effects of Nanoimprinted Structures on the Performance of Organic Solar Cells." Journal of Nanomaterials 2018 (2018): 1–6. http://dx.doi.org/10.1155/2018/7401974.

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The effect of nanoimprinted structures on the performance of organic bulk heterojunction solar cells was investigated. The nanostructures were formed over the active layer employing the soft lithographic technique. The measured incident photon-to-current efficiency revealed that the nanostructured morphology over the active layer can efficiently enhance both light harvesting and charge carrier collection due to improvement of the absorption of incident light and the buried nanostructured cathode, respectively. The devices prepared with the imprinted nanostructures exhibited significantly highe

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11

Zhang, Heng, Xiao Hong Zhou, Zong Bao Fang, and Lin Sen Chen. "Research on Fabrication for Nanostructures on the Surface of GaN." Advanced Materials Research 662 (February 2013): 127–31. http://dx.doi.org/10.4028/www.scientific.net/amr.662.127.

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A novel way to fabricate nanostructures on the GaN surface using a GaN-on-Sapphire system is developed. The direct fabrication of nanostructures on GaN was performed by four interfering nanosecond laser beams with a diffractive beam splitter. It was found that the obtained nanostructures had a negative shape of the interference pattern of four laser beams. The reflection losses at the GaN interfaces are suppressed. The light extraction efficiency is significantly improved for the nanostructured GaN layer. This work provides a very practical approach to fabricate freestanding nanostructures on

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12

Hu, Wen-ru, Xiang-quan Meng, Lei Zhang, Jian Sun, Xue Yang, and Xiao-dong Du. "Improved thermal stability of nanostructured surface on Al 6082 alloy by (Zr+Yb) addition." Emerging Materials Research 14, no. 1 (2025): 1–30. https://doi.org/10.1680/jemmr.24.00031.

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Aluminum alloy 6082 (AA6082) is widely used in the production of industrial structural parts due to its light weight and good mechanical properties. However, such structural components are often accompanied by peripheral coarse grain defects and poor surface hardness and wear resistance. A nanostructured surface layer was developed on AA6082 through Surface Mechanical Attrition Treatment (SMAT) to improve the surface properties. Thermal stability and other features of nanostructured surface layer were investigated after annealed from 150 °C to 350 °C. The experiment results showed that the the

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13

An, Xinlai, Weikang Bao, Zuhe Zhang, et al. "Gradient Enhanced Strain Hardening and Tensile Deformability in a Gradient-Nanostructured Ni Alloy." Nanomaterials 11, no. 9 (2021): 2437. http://dx.doi.org/10.3390/nano11092437.

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Gradient-nanostructured material is an emerging category of material with spatial gradients in microstructural features. The incompatibility between gradient nanostructures (GNS) in the surface layer and coarse-grained (CG) core and their roles in extra strengthening and strain hardening have been well elucidated. Nevertheless, whether similar mechanisms exist within the GNS is not clear yet. Here, interactions between nanostructured layers constituting the GNS in a Ni alloy processed by surface mechanical rolling treatment were investigated by performing unique microtension tests on the whole

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14

Bae, Eun Jeong, Dong-Hyun Baek, and Young Wook Park. "Characteristics of Self-Nanostructured Growth of 4,6-Bis(3,5-di(pyridin-3-yl)phenyl)-2-Methylpyrimidine (B3PyMPM)." Journal of Nanoscience and Nanotechnology 21, no. 8 (2021): 4212–15. http://dx.doi.org/10.1166/jnn.2021.19385.

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In this study, we report the self-nanostructured growth of 4,6-bis(3,5-di(pyridin-3-yl)phenyl)-2-methylpyrimidine (B3PyMPM), which is widely used as an electron transport layer for organic light-emitting diodes (OLEDs). B3PyMPM nanostructures were formed on the surface of a substrate using vacuum thermal evaporation, and parameters such as substrate rotation speed and evaporation angle were altered to study their effect on the growth of nanostructures. Moreover, it was proven that the growth of nanostructures was dependent on the underneath materials. This self-nanostructured growth of B3PyMPM

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15

Scandurra, Antonino, Valentina Iacono, Stefano Boscarino, Silvia Scalese, Maria Grazia Grimaldi, and Francesco Ruffino. "Model of Chronoamperometric Response towards Glucose Sensing by Arrays of Gold Nanostructures Obtained by Laser, Thermal and Wet Processes." Nanomaterials 13, no. 7 (2023): 1163. http://dx.doi.org/10.3390/nano13071163.

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Non-enzymatic electrochemical glucose sensors are of great importance in biomedical applications, for the realization of portable diabetic testing kits and continuous glucose monitoring systems. Nanostructured materials show a number of advantages in the applications of analytical electrochemistry, compared to macroscopic electrodes, such as great sensitivity and little dependence on analyte diffusion close to the electrode–solution interface. Obtaining electrodes based on nanomaterials without using expensive lithographic techniques represents a great added value. In this paper, we modeled th

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Okamoto, Koichi, Daisuke Tanaka, Tetsuya Matsuyama, Kenji Wada, Yusuke Arima, and Kaoru Tamada. "Design and Optimization of Silver Nanostructured Arrays in Plasmonic Metamaterials for Sensitive Imaging Applications." Photonics 11, no. 4 (2024): 292. http://dx.doi.org/10.3390/photonics11040292.

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This paper delves into the strategic design and optimization of silver (Ag) nanostructured arrays within plasmonic metamaterials, targeting the enhancement of imaging sensitivity. Leveraging Finite-Difference Time-Domain (FDTD) simulations, our research rigorously compares various Ag nanostructured geometries, including nanospheres, nanocones, nanodisks, and nanocubes. The aim is to pinpoint configurations that significantly enhance electric field localization on the surfaces of nanostructures, a pivotal factor. The nanocube array exhibits superior field enhancement, particularly in narrow nan

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17

Polito Lucas, Jorge Alberto, Francisco Javier Flores Ruiz, Valentín García Vázquez, and Ana Lilia González. "Tailoring optical response in nanostructured bilayers: Effects of surface roughness and layer thickness on NbN/Nb and TiN/Ti." Superficies y Vacío 37 (February 19, 2024): 240201. http://dx.doi.org/10.47566/2024_syv37_1-240201.

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Numerical calculations were performed on NbN/Nb and TiN/Ti nanostructured bilayers. Discrete dipole approximationimplemented in the DDSCAT code was utilized. In order to design a TUC (Target Unit Cell) with realistic surfaceroughnesspattern, Atomic Force Microscope images of 100 ±10 nm Nb thin films were used. The optical properties of nanostructured bilayers (60-100 nm thickness with a ±10 nm surface roughness) were calculated, keeping the interfacebetween the layers as smooth flat surfaces. For the NbN/Nb nanostructure with a thickness between 100 ±10 nm, and 70 ±10 nm, in a wavelength range

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18

Liu, Yu Liang, Tian Ying Xiong, and Ke Yang. "Thermal Stability of 40Cr Steel with Surface Nanocrystallization." Materials Science Forum 510-511 (March 2006): 434–37. http://dx.doi.org/10.4028/www.scientific.net/msf.510-511.434.

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Surface Nanocrystallization(SNC) is a new method of fabricating nanostructured materials while thermal stability is an important problem for the application of nanostructured materials. A nanostructured layer was fabricated on the surface of 40Cr steel by Supersonic Particles Bombarding method, and the variation of microstructure and microhardness of nanostructured layer was studied. Nanostructured surface layer showed high thermal stability.

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19

Gulina, L. B., V. P. Tolstoi, and E. V. Tolstobrov. "Layer-by-layer synthesis and study of nanostructured Pb4SbS6.5 layers." Russian Journal of General Chemistry 78, no. 6 (2008): 1133–34. http://dx.doi.org/10.1134/s1070363208060054.

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20

Ohlin, Hanna, Thomas Frisk, and Ulrich Vogt. "Single Layer Lift-Off of CSAR62 for Dense Nanostructured Patterns." Micromachines 14, no. 4 (2023): 766. http://dx.doi.org/10.3390/mi14040766.

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Lift-off processing is a common method of pattern transfer for different nanofabrication applications. With the emergence of chemically amplified and semi-amplified resist systems, the possibilities for pattern definition via electron beam lithography has been widened. We report a reliable and simple lift-off process for dense nanostructured pattern in CSAR62. The pattern is defined in a single layer CSAR62 resist mask for gold nanostructures on silicon. The process offers a slimmed down pathway for pattern definition of dense nanostructures with varied feature size and an up to 10 nm thick go

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21

Botsoa, Jacques, Jean Marie Bluet, Vladimir Lysenko, Olivier Marty, Daniel Barbier, and Gérard Guillot. "Photoluminescence of 6H-SiC Nanostructures." Materials Science Forum 556-557 (September 2007): 407–10. http://dx.doi.org/10.4028/www.scientific.net/msf.556-557.407.

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Photoluminescence properties of a freestanding nanoporous SiC layer obtained from bulk 6H-SiC substrate as well as SiC nanopowder consisting of numerous separated nanoparticles has been investigated. The nanoporous SiC layer is obtained by UV radiation assisted electrochemical etching of the 6H-SiC wafer and the SiC nanopowder is formed by mechanical grinding of the nanoporous SiC free layer. A comparison of low temperature PL spectra of the SiC nanostructures and initial SiC bulk substrate has been performed. The evolution of PL spectra of the SiC nanostructures with respect to their surface

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22

Hung, Sheng-Chun, and YI Hua Lee. "High-Sensitivity Glucose Sensor Utilizing Various Nanostructures and Electric Double-Layer-Gated Field-Effect Transistor Configuration." ECS Meeting Abstracts MA2024-02, no. 64 (2024): 4275. https://doi.org/10.1149/ma2024-02644275mtgabs.

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This study presents an innovative approach to fabricate a high-sensitivity and low detection limit glucose sensor by employing various nanostructured materials in conjunction with an electric double-layer-gated field-effect transistor (FET) configuration. The nanostructured materials utilized include nickel nanowires, cuprous oxide, copper oxide/nanocarbon tube composites, and nano gold/zinc oxide composite materials. The enhanced detection capability is attributed to the utilization of a novel biosensor structure with unique features: an electrical double-layer gating configuration combined w

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Xiong, Chao, Weilong Xu, Yu Zhao, Jin Xiao, and Xifang Zhu. "New design graded refractive index antireflection coatings for silicon solar cells." Modern Physics Letters B 31, no. 19-21 (2017): 1740028. http://dx.doi.org/10.1142/s0217984917400280.

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Reflectance spectrum of nanoporous silicon dioxide (SiO2) double layer was calculated by using the matrix method. The results were compared with the corresponding spectrum of silicon oxynitride (SiO[Formula: see text]N[Formula: see text])–porous silicon (PS) double layer which deposited on nanostructured black silicon coatings. The nanoporous silicon dioxide (SiO2) double layer deposited on nanostructure black silicon antireflection coating presents a lower reflectance in a broad range of solar spectrum. This research outcome may find a wide application in solar cell industry.

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Wang, Chao, Rong Sheng Cai, Fei Yu Diao, Lu Yuan, Guang Wen Zhou, and Yi Qian Wang. "Growth and Epitaxy of ZnO Nanowires on Brass Substrates." Advanced Materials Research 850-851 (December 2013): 3–6. http://dx.doi.org/10.4028/www.scientific.net/amr.850-851.3.

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One-dimensional nanostructures exhibit interesting electronic and optical properties due to their low dimensionality leading to quantum confinement effects. ZnO has received lot of attention as a nanostructured material because of unique properties rendering it suitable for various applications. In this paper, ZnO nanowires are synthesized in large quantity through thermal oxidation of brass (Cu0.7Zn0.3alloy). The epitaxial relationship between the brass substrates and ZnO layer and the epitaxial relationship between the ZnO nanowire and ZnO layer have been examined.

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Scandurra, Antonino, Francesco Ruffino, and Maria Grazia Grimaldi. "Graphene Paper-Gold Nanostructured Electrodes Obtained by Laser Dewetting for High Sensitive Non-Enzymatic Glucose Sensing." Proceedings 15, no. 1 (2019): 1. http://dx.doi.org/10.3390/proceedings2019015001.

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Electrodes for non-enzymatic glucose sensing based on gold nanostructures onto graphene paper (GP-AuNPs) have been obtained inducing dewetting, by laser annealing, of 8 nm-thick Au layer deposited by sputtering. Molten-phase dewetting of gold layer, which produces the formation of spherical nanoparticles (AuNPs), was achieved by nanosecond laser annealing using a pulsed (12 ns) Nd: yttrium aluminum garnet YAG laser operating at 532 nm. The Surface of the electrode presents gold rich regions consisting of graphene nanoplatelets covered by spherical AuNPs. The sizes of AuNPs are in the range of

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Adetoye, B. O., A. B. Alabi, T. Akomolafe, et al. "Crystal growth of nanostructured zinc oxide nanorods from the seed layer." Materials Science-Poland 36, no. 3 (2018): 477–82. http://dx.doi.org/10.2478/msp-2018-0067.

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AbstractOne-dimensional (1D) zinc oxide (ZnO) nanostructures (nanorods) were synthesized on a glass slide and fluorine-doped tin oxide (SnO2/F or FTO) coated glass (FTO/glass) by a wet chemical method. The structural, morphological and optical analyses of the as-deposited ZnO nanostructures were performed by X-ray diffractometry (XRD), scanning electron microscopy (SEM) and UV-Vis spectroscopy, respectively. The XRD results showed that the nanostructures as-deposited on the glass and the FTO/glass substrates were of ZnO wurtzite crystal structure, and the crystallite sizes estimated from the (

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Zhang, Wenyao, Ya Zhang, Xiao Miao, Ling Zhao, and Changqing Zhu. "Deposition of FeOOH Layer on Ultrathin Hematite Nanoflakes to Promote Photoelectrochemical Water Splitting." Micromachines 15, no. 3 (2024): 387. http://dx.doi.org/10.3390/mi15030387.

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Hematite is one of the most promising photoanode materials for the study of photoelectrochemical (PEC) water splitting because of its ideal bandgap with sufficient visible light absorption and stability in alkaline electrolytes. However, owing to the intrinsically high electron-hole recombination, the PEC performance of hematite is still far below that expected. The efficient charge separation can be achieved via growth of FeOOH on hematite photoanode. In this study, hematite nanostructures were successfully grown on the surface of iron foil by the simple immersion deposition method and therma

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Li, Yuan, Junhong Su, Junqi Xu, Lihong Yang, and Guoliang Yang. "Optical and Laser-Induced Damage Characterization of Porous Structural Silicon Oxide Film with Hexagonal Period by Nanoimprint Lithography." Coatings 12, no. 3 (2022): 351. http://dx.doi.org/10.3390/coatings12030351.

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We designed and fabricated a porous nanostructured film with a hexagonal period for a high-power laser system. The proposed nanostructure exhibits polarization-independent, infrared, and antireflective properties. The measured transmittance of the structural film does not drop below 93% between 948 nm and 2500 nm (exceeding 95% from 1411–2177 nm), and this performance is maintained for incident angles ranging from 0–30°. The laser-induced damage threshold (LIDT) of the structural film (17.94 J/cm2) is much higher than that of the single layer of SiO2 film (7.06 J/cm2). These results show that

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Dharani, A. P., A. Sales Amalraj, S. Christina Joycee, V. Sivakumar, and G. Senguttuvan. "Influence of Seed Layer on Surface Morphology of ZnO Thin Films Grown by SILAR Method." International Journal of Nanoscience 19, no. 02 (2020): 1950005. http://dx.doi.org/10.1142/s0219581x19500054.

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Zinc oxide (ZnO) nanostructured seed layer was grown by successive ionic layer adsorption and reaction (SILAR) method on glass substrate. The as-prepared nanostructured seed layer was characterized by X-ray diffraction (XRD) and scanning electron microscope (SEM) for its structure and surface morphology. XRD results showed a ZnO seed layer growth oriented along the (100) direction. Study of surface morphology showed ZnO nanocrystal clusters with hexagonal shape. ZnO nanorods (NRs) have been grown over the as-prepared ZnO nanostructured seed layer by immersing seed layer substrate in a chemical

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Shi, F., Z. Liu, G. L. Wu, et al. "Surface Imprinting in Layer-by-Layer Nanostructured Films." Advanced Functional Materials 17, no. 11 (2007): 1821–27. http://dx.doi.org/10.1002/adfm.200700267.

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Geng, Donghui, Qiaoyan Sun, Chao Xin, and Lin Xiao. "Contribution to Improvement of Fatigue Properties of Zr-4 Alloy: Gradient Nanostructured Surface Layer versus Compressive Residual Stress." Nanomaterials 11, no. 11 (2021): 3125. http://dx.doi.org/10.3390/nano11113125.

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The gradient nanostructured (GNS) layer forms beneath the surface of Zr-4 samples by the surface mechanical grinding treatment (SMGT) process, which increases the fatigue strength apparently due to the synergistic effect of the gradient nanostructured layer and compressive residual stress. The SMGTed Zr-4 samples are subjected to annealing to remove residual stress (A-SMGT) and the individual effect of the GNS layer and compressive residual stress can be clarified. The results show that the gradient nanostructure in the surface is stable after annealing at 400 °C for 2 h but residual stress is

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Zheng, Yiran, Min Li, Xiaoyan Wen, Ho-Pui Ho, and Haifei Lu. "Nanostructured ZnO/Ag Film Prepared by Magnetron Sputtering Method for Fast Response of Ammonia Gas Detection." Molecules 25, no. 8 (2020): 1899. http://dx.doi.org/10.3390/molecules25081899.

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Possessing a large surface-to-volume ratio is significant to the sensitive gas detection of semiconductor nanostructures. Here, we propose a fast-response ammonia gas sensor based on porous nanostructured zinc oxide (ZnO) film, which is fabricated through physical vapor deposition and subsequent thermal annealing. In general, an extremely thin silver (Ag) layer (1, 3, 5 nm) and a 100 nm ZnO film are sequentially deposited on the SiO2/Si substrate by a magnetron sputtering method. The porous nanostructure of ZnO film is formed after thermal annealing contributed by the diffusion of Ag among ZnO

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Redolfi Riva, Eugenio Redolfi, Angela D’Alessio, and Silvestro Micera. "Polysaccharide Layer-by-Layer Coating for Polyimide-Based Neural Interfaces." Micromachines 13, no. 5 (2022): 692. http://dx.doi.org/10.3390/mi13050692.

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Implantable flexible neural interfaces (IfNIs) are capable of directly modulating signals of the central and peripheral nervous system by stimulating or recording the action potential. Despite outstanding results in acute experiments on animals and humans, their long-term biocompatibility is hampered by the effects of foreign body reactions that worsen electrical performance and cause tissue damage. We report on the fabrication of a polysaccharide nanostructured thin film as a coating of polyimide (PI)-based IfNIs. The layer-by-layer technique was used to coat the PI surface due to its versati

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Li, Song, Li, et al. "Hybrid Nanostructured Antireflection Coating by Self-Assembled Nanosphere Lithography." Coatings 9, no. 7 (2019): 453. http://dx.doi.org/10.3390/coatings9070453.

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Broadband antireflection (AR) coatings are essential elements for improving the photocurrent generation of photovoltaic modules or the enhancement of visibility in optical devices. In this paper, we report a hybrid nanostructured antireflection coating combination that is a clean and efficient method for fabricating a nanostructured antireflection coating (ARC). A multilayer thin-film was introduced between the ARC and substrate to solve the significant problem of preparing nanostructured ARCs on different substrates. In this way, we rebuilt a gradient refractive index structure and optimize t

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Yin, Bao Di, Shuo Fei Zhang, Jing Yuan Yang, Zhen Nan Deng, and Yu Sun. "Prepare and Properties of Titanium with Surface Nanostructure by High Energy Shot Peening." Advanced Materials Research 842 (November 2013): 267–70. http://dx.doi.org/10.4028/www.scientific.net/amr.842.267.

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The investigation was carried out to study the effect of a novel process of surface modification, surface nanocrystallization by high energy shot peening (HESP), on osteoblast proliferation and differentiation. A disc of pure titanium was processed to HESP in a commercial shot peening equipment, to create nanostructure at the surface. The surface microstructure was characterized by SEM and osteoblasts were co-cultured with the surface nanostructured titanium and unreceived titanium surface to evaluate their biocompatibility. The nanostructured surface layer on titanium was successfully process

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ZHANG, QIANG, CHANG-JIU LI, GUAN-JUN YANG, and CHENG-XIN LI. "EFFECT OF POWDER STRUCTURE ON MICROSTRUCTURE OF THE OXIDE SCALES FORMED ON COLD-SPRAYED NiCrAlY COATINGS." International Journal of Modern Physics B 24, no. 15n16 (2010): 3041–46. http://dx.doi.org/10.1142/s0217979210066057.

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Commercially available, gas-atomized NiCrAlY powder was milled in Ar atmosphere to prepare nanostructured powder. The NiCrAlY coatings in the conventional microstructure and the nanostructure were subsequently deposited by cold spraying using the as-atomized powder and milled powder. The influence of the powder structure on the microstructure of cold-sprayed coating was investigated. It was found that dense NiCrAlY coatings can be cold-sprayed using two powders. Isothermal oxidation was performed at 1000°C in air for up to 500 hours. The results showed that the growth rate of the oxide on the

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DEHGHANI, KAMRAN. "COMPARING THE BAKE HARDENING OF NANO-GRAIN AA6056 WITH ITS COARSE-GRAIN STRUCTURE." International Journal of Modern Physics: Conference Series 05 (January 2012): 335–41. http://dx.doi.org/10.1142/s2010194512002206.

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In preset work, the bake hardening behavior of 6056 aluminum alloy with nanostructured layer, produced by surface severe plastic deformation (SSPD), was compared with that of AA6056 with conventional coarse grain structure. Wire brushing process was employed in order to produce surface layers with nanograins. After formation of nanostructured surface layer, the structure was characterized using X-ray Diffraction (XRD) and scanning electron microscopy (SEM) techniques. According to the microhardness measurements, the depth of nanostructured layer, with the grains of 50-110 nm, was about 40-50 μ

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González, A., Angela Riego, Victor Vega, et al. "Functional Antimicrobial Surface Coatings Deposited onto Nanostructured 316L Food-Grade Stainless Steel." Nanomaterials 11, no. 4 (2021): 1055. http://dx.doi.org/10.3390/nano11041055.

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In our study, we demonstrated the performance of antimicrobial coatings on properly functionalized and nanostructured 316L food-grade stainless steel pipelines. For the fabrication of these functional coatings, we employed facile and low-cost electrochemical techniques and surface modification processes. The development of a nanoporous structure on the 316L stainless steel surface was performed by following an electropolishing process in an electrolytic bath, at a constant anodic voltage of 40 V for 10 min, while the temperature was maintained between 0 and 10 °C. Subsequently, we incorporated

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Massaglia, Giulia, Eve Verpoorten, Candido F. Pirri, and Marzia Quaglio. "Nanostructured gas diffusion layer to improve direct oxygen reduction reaction in Air-Cathode Single-Chamber Microbial Fuel Cells." E3S Web of Conferences 334 (2022): 04012. http://dx.doi.org/10.1051/e3sconf/202233404012.

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The aim of this work is the development of new nanostructured-gas-diffusion-layer (GDL) to improve the overall behaviour of Air-Cathode Single-Chamber-Microbial-Fuel-Cells (SCMFCs). The design of new nanostructured-GDL allowed exploiting all nanofibers ’intrinsic properties, such as high surface ratio to volume, high porosity, achieving thus a good oxygen diffusion into the proximity of catalyst layer, favouring thus the direct oxygen-reduction-reaction (ORR). Nanostructured-GDLs were prepared by electrospinning process, using a layer-by-layer deposition to collect 2 nanofibers’ mats. The firs

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Guldi, Dirk M., Federica Pellarini, Maurizio Prato, Catia Granito, and Luigino Troisi. "Layer-by-Layer Construction of Nanostructured Porphyrin−Fullerene Electrodes." Nano Letters 2, no. 9 (2002): 965–68. http://dx.doi.org/10.1021/nl025703o.

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Zhao, Yue, Ziyu Yao, Christopher D. Snow, et al. "Stable Fluorescence of Eu3+ Complex Nanostructures Beneath a Protein Skin for Potential Biometric Recognition." Nanomaterials 11, no. 9 (2021): 2462. http://dx.doi.org/10.3390/nano11092462.

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We designed and realized highly fluorescent nanostructures composed of Eu3+ complexes under a protein coating. The nanostructured material, confirmed by photo-induced force microscopy (PiFM), includes a bottom fluorescent layer and an upper protein layer. The bottom fluorescent layer includes Eu3+ that is coordinated by 1,10-phenanthroline (Phen) and oleic acid (O). The complete complexes (OEu3+Phen) formed higher-order structures with diameter 40–150 nm. Distinctive nanoscale striations reminiscent of fingerprints were observed with a high-resolution transmission electron microscope (HRTEM).

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Bulíř, Jiří. "Preparation of nanostructured ultrathin silver layer." Journal of Nanophotonics 5, no. 1 (2011): 051511. http://dx.doi.org/10.1117/1.3562568.

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Lee, Chung-Yung, Jacob Yeuk-Lung Ho, Man-Chun Tseng, and Hoi-Sing Kwok. "Nanostructured alignment layer for liquid crystals." Journal of the Society for Information Display 21, no. 9 (2013): 407–10. http://dx.doi.org/10.1002/jsid.197.

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Aleksic, Obrad, Zorka Djuric, Maria Nikolic, et al. "Nanostructured Fe2O3/TiO2 thick films prepared by screen printing." Processing and Application of Ceramics 7, no. 3 (2013): 129–34. http://dx.doi.org/10.2298/pac1303129a.

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Nanostructured single layered (pure TiO2 , pure ?-Fe2O3 and mixed Fe2O3 /TiO2 with two different oxide ratios, 2 : 3 and 3 : 2) and double layered (TiO2 layer over a Fe2O3 layer) thick films have been fabricated by screen printing technology on a glass substrate. The pastes used for film preparation were obtained by adding an organic vehicle to the oxide powders together with a small percentage of binding glass frit. Samples were dried up to 100 ?C and sintered at 650 ?C/60 minutes. Structural, morphological and optical studies have been carried out using XRD, SEM analyses and UV/Vis spectrosc

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Fedeli, L., A. Formenti, A. Pazzaglia, F. M. Arioli, A. Tentori, and M. Passoni. "Enhanced laser-driven hadron sources with nanostructured double-layer targets." New Journal of Physics 22, no. 3 (2020): 033045. http://dx.doi.org/10.1088/1367-2630/ab74a4.

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Gasa-Falcon, Ariadna, Isabel Odriozola-Serrano, Gemma Oms-Oliu, and Olga Martín-Belloso. "Nanostructured Lipid-Based Delivery Systems as a Strategy to Increase Functionality of Bioactive Compounds." Foods 9, no. 3 (2020): 325. http://dx.doi.org/10.3390/foods9030325.

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Acquisition of a healthy lifestyle through diet has driven the food manufacturing industry to produce new food products with high nutritional quality. In this sense, consumption of bioactive compounds has been associated with a decreased risk of suffering chronic diseases. Nonetheless, due to their low solubility in aqueous matrices, high instability in food products during processing and preparation as well as poor bioavailability, the use of such compounds is sometimes limited. Recent advancements in encapsulation and protection of bioactive compounds has opened new possibilities for the dev

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Wang, Z. B., K. Wang, K. Lu, Gerhard Wilde, and Sergiy V. Divinski. "Interface Diffusion in Cu Processed by Means of Surface Mechanical Attrition Treatment." Defect and Diffusion Forum 289-292 (April 2009): 557–63. http://dx.doi.org/10.4028/www.scientific.net/ddf.289-292.557.

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A nanostructured surface layer with a gradient microstructure was produced on a Cu plate by means of the surface mechanical attrition treatment (SMAT). Diffusion of Ni in the nanostructured layer was investigated by the radiotracer technique at temperatures from 383 to 438 K. The measured diffusion profiles consist of two distinct sections with different slopes, the steep one corresponding to the top surface layer with the grain size of 10 to 25 nm and the shallow one corresponding to a subsurface layer with a grain size of 25 to 100 nm. The effective diffusivities derived from both sections a

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Rajesh, Das, Guria Swapnadeep, Das Atasi, and DuttaGupta Namita. "Nanostructured ZnO and TiO2 Synthesis and Characterizations for Perovskite Solar Cell." Education in Chemical Science and Technology Vol. 12, Feb 2023 (2023): 106–11. https://doi.org/10.5281/zenodo.7777295.

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Department of Applied Sciences Undergraduate Student, , Haldia Institute of Technology ,West Bengal, India Department of Physics, Balurghat College, West Bengal, India Corresponding Author’s Email: rajeshhitsas2022@gmail.com ZnO nanostructures play important role as potential material due to their wide bandgap,  high electron mobility,  excellent electronic and photonic properties. Various ZnO nanostructures are very much useful to improve electron extraction efficiency to replace TiO<sub>2 </sub>as electron transport layer (ETL) in organic-Inorganic metal halide perovskite (CH

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Sun, Jian, Jing Zhang, Wei Ping Tong, Liang Zuo, and Ji Cheng He. "Plasma Nitriding of 20CrMo Steel with Nanostructured Surface Layer." Advanced Materials Research 472-475 (February 2012): 30–34. http://dx.doi.org/10.4028/www.scientific.net/amr.472-475.30.

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A nanostructured surface layer was produced on an 20CrMo steel plate by means of ultrasonic shot peening (USSP) treatment. Plasma nitriding of the treated and un-treated sample were investigated by using structure analysis (X-ray diffraction, optical microscopy, and transmission electron microscopy ) as well as hardness measurements. It was found that a nanostructured surface layer sample developed a compound layer twice as thick as that in a coarse-grained sample under the same plasma nitriding conditions (530 oC for 6 h). In addition, the USSP nitrided sample exhibited higher hardness and th

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Wang, Zhen, Armin VahidMohammadi, Liangqi Ouyang, et al. "3D Nanostructured Electrodes: Layer‐by‐Layer Self‐Assembled Nanostructured Electrodes for Lithium‐Ion Batteries (Small 6/2021)." Small 17, no. 6 (2021): 2170021. http://dx.doi.org/10.1002/smll.202170021.

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