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Journal articles on the topic 'Film nanostructures'

Author: Grafiati

Published: 28 May 2022

Last updated: 31 July 2025

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1

Gnawali, Guna Nidha, Shankar P. Shrestha, Khem N. Poudyal, Indra B. Karki, and Ishwar Koirala. "Study on the effect of growth-time and seed-layers of Zinc Oxide nanostructured thin film prepared by the hydrothermal method for liquefied petroleum gas sensor application." BIBECHANA 16 (November 22, 2018): 145–53. http://dx.doi.org/10.3126/bibechana.v16i0.21557.

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Gas sensors are devices that can convert the concentration of an analytic gas into an electronic signal. Zinc oxide (ZnO) is an important n-type metal oxide semiconductor which has been utilized as gas sensor for several decades. In this work, ZnO nanostructured films were synthesized by a hydrothermal route from ZnO seeds and used as a liquefied petroleum gas (LPG) sensor. At first ZnO seed layers were deposited on glass substrates by using spin coating method, then ZnO nanostructured were grown on these substrates by using hydrothermal growth method for different time duration. The effect of

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2

Yoon, Sang-Hyeok, and Kyo-Seon Kim. "Preparation of 1-D Nanostructured Tungsten Oxide Thin Film on Wire Mesh by Flame Vapor Deposition Process." Journal of Nanoscience and Nanotechnology 20, no. 7 (2020): 4517–20. http://dx.doi.org/10.1166/jnn.2020.17552.

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Flame vapor deposition (FVD) process can be used to prepare the tungsten oxide thin film which has photocatalytic activity at visible light. The FVD process is fast and economical to prepare thin film on substrate comparing to other processes. Various nanostructured thin films could be easily prepared by controlling several process parameters in FVD. One-dimensional (1-D) nanostructures with high surface area also can be prepared reproducibly. The tungsten wire precursor was oxidized and vaporized in flame to be deposited onto the substrate. The nanostructure shapes can be adjusted by controll

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3

Giannakas, Aris E., Constantinos E. Salmas, Dimitrios Moschovas, et al. "The Increase of Soft Cheese Shelf-Life Packaged with Edible Films Based on Novel Hybrid Nanostructures." Gels 8, no. 9 (2022): 539. http://dx.doi.org/10.3390/gels8090539.

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This study presents, the development of a green method to produce rich in thymol natural zeolite (TO@NZ) nanostructures. This material was used to prepare sodium-alginate/glycerol/xTO@NZ (ALG/G/TO@NZ) nanocomposite active films for the packaging of soft cheese to extend its shelf-life. Differential scanning calorimetry (DSC), X-ray analysis (XRD), scanning electron microscopy (SEM), and Fourier-transform infrared spectroscopy (FTIR) instruments were used for the characterization of such nanostructures and films, to identify the thymol adsorbed amount, to investigate the thermal behaviour, and

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4

Wang, Ying, and Guo Zhong Cao. "Synthesis and Electrochemical Properties of V₂O₅ Nanostructures." Key Engineering Materials 336-338 (April 2007): 2134–37. http://dx.doi.org/10.4028/www.scientific.net/kem.336-338.2134.

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In this seminar, I will present our recent work on the growth and electrochemical properties of single crystalline vanadium pentoxide (V2O5) nanorod and Ni-V2O5·nH2O nanocable arrays. These nanostructures were prepared by solution synthesis and template-based electrodeposition. Processing, morphology, structure and electrochemical properties of these nanostructures will be discussed. These nanostructured electrodes of vanadium pentoxide demonstrate significantly enhanced intercalation capcity and charge/discharge rate compared to the plain film electrodes, due to the high surface area and shor

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5

Gyanwali, Gunanidhi. "Studying the Effect of Seed-layers of Zinc Oxide Nanostructured Thin Film for Liquefied Petroleum Gas Sensor Application." Molung Educational Frontier 10 (December 31, 2020): 41–49. http://dx.doi.org/10.3126/mef.v10i0.34056.

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Gas sensors are devices that can convert the concentration of an analyte gas into an electronic signal. Zinc oxide (ZnO) is one of the most important n-type metal oxide semiconductor which has been utilized as gas sensor for many years. In this work, ZnO nanostructured films were synthesized by a hydrothermal growth from ZnO seeds and used as a liquefied petroleum gas (LPG) sensor. At first ZnO seed layers were deposited on glass substrates by using spin coating method, then ZnO nanostructured were grown on these substrates by using hydrothermal growth method. The effect of seed layers of ZnO

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6

Alhalaili, Badriyah, Ahmad Al-Duweesh, Ileana Nicoleta Popescu, Ruxandra Vidu, Luige Vladareanu, and M. Saif Islam. "Improvement of Schottky Contacts of Gallium Oxide (Ga2O3) Nanowires for UV Applications." Sensors 22, no. 5 (2022): 2048. http://dx.doi.org/10.3390/s22052048.

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Interest in the synthesis and fabrication of gallium oxide (Ga2O3) nanostructures as wide bandgap semiconductor-based ultraviolet (UV) photodetectors has recently increased due to their importance in cases of deep-UV photodetectors operating in high power/temperature conditions. Due to their unique properties, i.e., higher surface-to-volume ratio and quantum effects, these nanostructures can significantly enhance the sensitivity of detection. In this work, two Ga2O3 nanostructured films with different nanowire densities and sizes obtained by thermal oxidation of Ga on quartz, in the presence a

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7

Raksa, Phathaitep, A. Gardchareon, N. Mangkorntong, and Supab Choopun. "CuO Nanostructure by Oxidization of Copper Thin Films." Advanced Materials Research 55-57 (August 2008): 645–48. http://dx.doi.org/10.4028/www.scientific.net/amr.55-57.645.

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CuO nanostructures were synthesized by oxidizing copper thin films. The copper thin film was grown on alumina substrates by evaporation copper powder at pressure of 0.04 mtorr. The copper thin films were then oxidized 800, and 900oC for 12, 24 and 48 hr, respectively. The obtained CuO nanostructures were investigated by Energy Dispersive Spectroscopy (EDS), Field Emission Scanning Electron Microscope (FE-SEM) image, and X-Ray Diffraction (XRD). The diameter of CuO nanostructure is around 100-600 nanometers and it is depends on oxidation reaction time and temperature. These CuO nanostructures h

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8

Wallace, Steaphan M., Thiyagu Subramani, Wipakorn Jevasuwan, and Naoki Fukata. "Conversion of Amorphous Carbon on Silicon Nanostructures into Similar Shaped Semi-Crystalline Graphene Sheets." Journal of Nanoscience and Nanotechnology 21, no. 9 (2021): 4949–54. http://dx.doi.org/10.1166/jnn.2021.19329.

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Graphene sheets displaying partial crystallinity and nanowire structures were formed on a silicon substrate with silicon nanowires by utilizing an amorphous carbon source. The carbon source was deposited onto the silicon nanostructured substrate by breaking down a polymer precursor and was crystallized by a nickel catalyst during relatively low temperature inert gas annealing. The resulting free-standing graphene-based material can remain on the substrate surface after catalyst removal or can be removed as a separate film. The film is flexible, continuous, and closely mimics the silicon nanost

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9

LYUKSYUTOV, I. F. "CONTROLLING SUPERCONDUCTIVITY WITH MAGNETIC NANOSTRUCTURES." International Journal of Modern Physics B 27, no. 15 (2013): 1362004. http://dx.doi.org/10.1142/s021797921362004x.

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We discuss different possibilities to control vortex motion in a thin superconducting film with Tesla range magnetic fields generated by magnetic nanostructures. These nanostructures can be embedded into the superconducting film (arrays of magnetic nanorods) or placed outside the film and separated from it with an insulating layer (arrays of magnetic nanostripes). Interaction of the superconducting film with the magnetic nanostructure results in a strong increase and hysteresis of the critical current, in a strong anisotropy of the critical current (in the case of magnetic nanostripes) and sev

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10

Li, Xiaoni, Zhijie Li, Wanting He, et al. "Enhanced Electrochromic Properties of Nanostructured WO3 Film by Combination of Chemical and Physical Methods." Coatings 11, no. 8 (2021): 959. http://dx.doi.org/10.3390/coatings11080959.

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WO3 films are the most widely used electrochromic functional layers. It is known that WO3 films prepared by pure chemical method generally possess novel nanostructures, but the adhesion between WO3 films and substrates is weak. However, WO3 films prepared by pure physical method usually show relatively dense morphology, which limits their electrochromic properties. In order to break through these bottlenecks and further improve their electrochromic properties, this work first prepared nanostructured WO3 powder by chemical method, and then using this powder as the evaporation source, nanostruct

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11

Cho, Eunmi, Mac Kim, Jin-Seong Park, and Sang-Jin Lee. "Plasma-Polymer-Fluorocarbon Thin Film Coated Nanostructured-Polyethylene Terephthalate Surface with Highly Durable Superhydrophobic and Antireflective Properties." Polymers 12, no. 5 (2020): 1026. http://dx.doi.org/10.3390/polym12051026.

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Herein, an antireflection and superhydrophobic film was obtained by uniformly forming nanostructures on the surface of polyethylene terephthalate (PET) substrate using oxygen plasma without a pattern mask and coating plasma-polymer-fluorocarbon (PPFC) on the nanostructured surface by mid-range frequency sputtering. PPFC/nanostructured-PET showed a reflectance of 4.2%, which is 56% lower than that of the PET film. Haze was also improved. Nanostructured-PET exhibited a superhydrophilic surface due to plasma deformation and a superhydrophobic surface could be realized by coating PPFC on the nanos

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12

Mamat, Mohamad Hafiz, Zuraida Khusaimi, and Mohamad Mahmood Rusop. "Growth of Multi-Shaped Zinc Oxide Nanostructures Using C-Axis Oriented Zinc Oxide Thin Film as a Seeded Catalyst via Hydrothermal Aqueous Chemical Growth Method." Defect and Diffusion Forum 312-315 (April 2011): 1126–31. http://dx.doi.org/10.4028/www.scientific.net/ddf.312-315.1126.

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Zinc oxide (ZnO) nanostructures with different kind of morphologies were synthesized on glass substrates via the hydrothermal aqueous chemical growth method utilizing c-axis oriented ZnO thin film as seeded catalyst. By preparing ZnO thin film at different molar concentrations between 0.2~1.0 M, oval shaped ZnO nanostructures mixed with ZnO nanowires and rod shaped ZnO nanostructures mixed with ZnO nanowires were produced after immersion process into 0.0002 M zinc nitrate solution for 24 hour. The XRD spectra show synthesized ZnO nanostructures were ZnO hexagonal wurtzite crystalline. The phot

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13

Leach, Gary W., Sasan V. Grayli, Finlay MacNab, Xin Zhang, and Saeid Kamal. "Hot Electron Extraction Enabled By Single-Crystal Metal Films and Nanostructures." ECS Meeting Abstracts MA2022-01, no. 13 (2022): 925. http://dx.doi.org/10.1149/ma2022-0113925mtgabs.

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In contrast to conventional photovoltaic devices which rely on bulk semiconductor material absorption and separation of electron-hole pairs, surface plasmon-based solar energy harvesting employs rectifying metal/dielectric interfaces to capture light and separate charges. Here, we describe the requirements for efficient hot electron extraction in plasmonic photovoltaic devices and demonstrate a new scalable and environmentally friendly electroless deposition method for single-crystal epitaxial noble metals films and nanostructures. The method produces ultra-smooth, low loss, single-crystal nob

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14

Chirumamilla, Manohar, Tobias Krekeler, Deyong Wang, et al. "Magnetron Sputter Deposition of Nanostructured AlN Thin Films." Applied Nano 4, no. 4 (2023): 280–92. http://dx.doi.org/10.3390/applnano4040016.

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Aluminum nitride (AlN) is a material of growing interest for power electronics, fabrication of sensors, micro-electromechanical systems, and piezoelectric generators. For the latter, the formation of nanowire arrays or nanostructured films is one of the emerging research directions. In the current work, nanostructured AlN films manufactured with normal and glancing angle magnetron sputter depositions have been investigated with scanning and transmission electron microscopy, X-ray diffraction, atomic force microscopy, and optical spectroscopy. Growth of the nanostructures was realized utilizing

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15

Jung, Sungwook, I. O. Parm, Kyung Soo Jang, et al. "Fabrication of Nanostructure and Formation of Nanocrystal for Non-Volatile Memory." Journal of Nanoscience and Nanotechnology 6, no. 11 (2006): 3652–56. http://dx.doi.org/10.1166/jnn.2006.075.

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In this work, we have demonstrated that the nanocrystal created by combining the self-assembled block copolymer thin film with regular semiconductor processing can be applicable to non-volatile memory device with increased charge storage capacity over planar structures. Self-assembled block copolymer thin film for nanostructures with critical dimensions below photolithographic resolution limits has been used during all experiments. Nanoporous thin film from PS-b-PMMA diblock copolymer thin film with selective removal of PMMA domains was used to fabricate nanostructure and nanocrystal. We have

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16

Gutu, Timothy, Debra K. Gale, Clayton Jeffryes, et al. "Electron Microscopy and Optical Characterization of Cadmium Sulphide Nanocrystals Deposited on the Patterned Surface of Diatom Biosilica." Journal of Nanomaterials 2009 (2009): 1–7. http://dx.doi.org/10.1155/2009/860536.

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Intricately patterned biosilica obtained from the shell of unicellular algae called diatoms serve as novel templates for fabrication of optoelectronic nanostructures. In this study, the surface of diatom frustules that possessed hierarchical architecture ordered at the micro and nanoscale was coated with a nanostructured polycrystalline cadmium sulphide (CdS) thin film using a chemical bath deposition technique. The CdS thin film was composed of spherical nanoparticles with a diameter of about 75 nm. The CdS nanoparticle thin film imparted new photoluminescent properties to the intricately pat

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17

Lin, Pengtao, Lari S. Zhang, Kai Zhang, and Helmut Baumgart. "Advanced Nested Coaxial Thin-Film ZnO Nanostructures Synthesized by Atomic Layer Deposition for Improved Sensing Performance." Applied Sciences 14, no. 23 (2024): 10959. http://dx.doi.org/10.3390/app142310959.

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We report a new synthesis method for multiple-walled nested thin-film nanostructures by combining hydrothermal growth methods with atomic layer deposition (ALD) thin-film technology and sacrificial films, thereby increasing the surface-to-volume ratio to improve the sensing performance of novel ZnO gas sensors. Single-crystal ZnO nanorods serve as the core of the nanostructure assembly and were synthesized hydrothermally on fine-grained ALD ZnO seed films. Subsequently, the ZnO core nanotubes were coated with alternating sacrificial coaxial 3D wrap-around ALD Al2O3 films and ALD ZnO films. Bas

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18

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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19

Raza, Muhammad Akram, Anam Habib, Zakia Kanwal, et al. "Optical CO2 Gas Sensing Based on TiO2 Thin Films of Diverse Thickness Decorated with Silver Nanoparticles." Advances in Materials Science and Engineering 2018 (July 19, 2018): 1–12. http://dx.doi.org/10.1155/2018/2780203.

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The fabrication, characterization, and CO2 gas detection performance of single component-based and hetero-nanostructure-based optical gas sensors are reported in the present work. Single component-based structures include (i) TiO2 thin films with varied film thickness (37.45 nm, 51.92 nm, and 99.55 nm) fabricated via the RF sputtering system for different deposition times and (ii) silver nanoparticles (AgNPs) deposited on the glass substrate by the wet chemical method. Hetero-nanostructures were achieved by decorating the AgNPs on the predeposited TiO2 thin films. The structural, morphological

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Wang, Guilin, Ronghua Yi, Xueting Zhai, et al. "A flexible SERS-active film for studying the effect of non-metallic nanostructures on Raman enhancement." Nanoscale 10, no. 35 (2018): 16895–901. http://dx.doi.org/10.1039/c8nr04971h.

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21

Kamarozaman, Nur Syahirah, Mohd Nor Asiah, Z. Aznilinda, et al. "Memristive Behavior of TiO₂ Nanostructures Grown at Different Substrate Positioning by Immersion Method." Advanced Materials Research 795 (September 2013): 256–59. http://dx.doi.org/10.4028/www.scientific.net/amr.795.256.

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In this paper, the physical characteristics and memristive behavior of TiO2 nanostructures grown at different substrate positioning by wet chemical solution were investigated. TiO2 thin film as a seed layer for TiO2 nanostructures growth was first deposited on ITO-coated substrate by RF magnetron sputtering method. TiO2 nanostructures were then grown by immersing the TiO2 thin film/ITO/glass sample in 10M NaOH solution at 80 °C while studying the effect of the substrate position to the nanostructure growth and thus its memristive behavior. Characterization on the growth morphology of TiO2 nano

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Tran, Thanh Binh, Quoc Vuong Luyen, Van Han Hoang, et al. "Study on the gas sensor at room temperature based on polypyrrole materials." Ministry of Science and Technology, Vietnam 64, no. 3 (2022): 50–54. http://dx.doi.org/10.31276/vjst.64(3).50-54.

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This paper presents the results of synthesising polypyrrole (PPy) modified Dodecylbenzene sulfonic acid (DBSA) with nanostructures oriented to applications for NH3 gas sensors operating at room temperature. The outcomes of surface morphology and chemical composition structure analysis of PPy film were studied by field-emission scanning electron microscopy (FE-SEM), fourier-transform infrared spectroscopy (FT-IR), and ultraviolet-visible spectroscopy (UV-Vis). The products were obtained by electrochemical method with the nanostructured PPy film, the conductivity of the PPy film depends on the c

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Bahari, Ali, Masoud Ebrahimzadeh, and Reza Gholipur. "Structural and electrical properties of zirconium doped yttrium oxide nanostructures." International Journal of Modern Physics B 28, no. 16 (2014): 1450102. http://dx.doi.org/10.1142/s0217979214501021.

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A synthetic process for the formation of Zr x Y 1-x O y nanostructures is demonstrated by the reaction of yttrium nitrate hexahydrate with zirconium propoxide. The reactions are carried out at temperature 60°C and pressure 0.1 MPa. The energy dispersive X-ray (EDX) spectroscopy measurements confirm formation of Zr x Y 1-x O y nanostructures and the presence of carbonate and hydroxide species which are removed after high temperature anneals. It was found that the oxygen pressure during synthesis plays a determinant role on the structural properties of the nanostructure. This effect is further s

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Kamarozaman, Nur Syahirah, Mohd Nor Asiah, Z. Aznilinda, Raudah Abu Bakar, Sukreen Hana Herman, and M. Rusop. "Effect of TiO₂ Seed Layer Thickness to the Growth of TiO₂ Nanostructures by Immersion Method for Memristive Device Application." Applied Mechanics and Materials 393 (September 2013): 63–67. http://dx.doi.org/10.4028/www.scientific.net/amm.393.63.

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TiO2 nanostructures were successfully grown on TiO2 thin film by solution-based method at low temperature. TiO2 thin film as a seed layer for the nanostructures growth was deposited on ITO substrate by RF magnetron sputtering method at 40 and 60 nm thicknesses. Then the TiO2 nanostructures were synthesized on the samples by keeping them floating with TiO2 layer facing down the vessel in 10M NaOH solution at 80°C for 45 min. Effect of seed layer thickness to the growth of TiO2 nanostructure and its memristive behaviour were investigated. Surface morphology and current-voltage measurement for it

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KSAPABUTR, BUSSARIN, WORRASIT THONG-OUN, and MANOP PANAPOY. "MORPHOLOGY OF NANOSTRUCTURED TiO2 THIN FILM: SYNTHESIS BY ELECTROSTATIC SPRAY DEPOSITION TECHNIQUE AND ITS PHOTOCATALYTIC ACTIVITY." Functional Materials Letters 02, no. 04 (2009): 179–83. http://dx.doi.org/10.1142/s1793604709000776.

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Titanium dioxide ( TiO2 ) thin films with different morphologies were synthesized on glass substrate using an electrostatic spray deposition method. Rod, flake and spherical-like nanostructures of TiO2 porous films with anatase phase could easily be obtained by tailoring the precursor solution concentration for atomization. The photocatalytic degradation of methylene blue in aqueous solution was used as a probe to evaluate their photocatalytic activities. The rod-like nanostructured film produced higher photocatalytic activity than other films. The deposition of thin film photocatalyst on the

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Ali, Sahar Mohammed, Osama Abdul Azeez Dakhil, and Emad Hameed Hussein. "Comparison Between Photoactivity of ZnO/NiO Nanostructures Synthesized by CBD and Modified -CBD for Rhodamine B Removal." Al-Mustansiriyah Journal of Science 32, no. 4 (2021): 110–16. http://dx.doi.org/10.23851/mjs.v32i4.1050.

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This work describes a comparative study on zinc oxide/nickel oxide (ZnO/NiO) nanostructures deposited on glass substrates by chemical bath and modified bath, (CBD), and (M-CBD) techniques. The photoactivity of ZnO/NiO nanostructure films was tested on Rhodamine B (RB) dye under sunlight. The nanostructure films were evaluated using various characterization tools. Accordingly, the field-emission scanning electron microscopic (FE-SEM) images confirm that the film synthesized by CBD was flower-like nanosheets with a thickness of 37.96 - 51.36 nm. In contrast, the M-CBD film showed spherical nanop

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Wan, Lili, Jie Yang, Xiaoru Liu, et al. "Enhanced antireflective and laser damage resistance of refractive-index gradient SiO₂ nanostructured films at 1064 nm." Polish Journal of Chemical Technology 26, no. 2 (2024): 25–30. http://dx.doi.org/10.2478/pjct-2024-0014.

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Abstract A facile sol-gel procedure was employed to create refractive-index gradient SiO2 antireflective (AR) films. A monolayer film, characterized by the porous crosslinking framework, was fabricated with a designed volume ratio mixture both with colloidal silica suspension and soluble organic polysiloxane. The upper layer for the bilayer film was a hexamethylisilazane (HMDS) modified colloidal silica suspension, leading to the film surface transfer to hydrophobic. The strategic design of nanostructures in the bottom and upper layers resulted in a refractive-index gradient SiO2 film with enh

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Guo, Wenting, Liangcai Zeng, and Zhuoyuan Liu. "Mechanism of Surface Wettability of Nanostructure Morphology Enhancing Boiling Heat Transfer: Molecular Dynamics Simulation." Processes 11, no. 3 (2023): 857. http://dx.doi.org/10.3390/pr11030857.

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In this paper, the interaction mechanism between the solid–liquid–gas interface phenomenon caused by nanostructure and surface wettability and boiling heat transfer is described, and the heat transfer theory of single wettable nanostructure surface and mixed wettable nanostructure surface is proposed. Through molecular dynamics simulation, the thermodynamic model of the wettable surface of nanostructures is established. The nanostructures are set as four rectangular lattice structures with a height of 18 Å. The solid atoms are platinum atoms, and the liquid atoms are argon atoms. The simulatio

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Dong, Bing Hui, Chen Zhang, Zafer Alajmi, Ke Yong Wang, and Tao Fu. "Sol-Gel Derived TiO₂ Coating on Hydrothermally Roughened NiTi Alloy." Advanced Materials Research 668 (March 2013): 830–34. http://dx.doi.org/10.4028/www.scientific.net/amr.668.830.

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Nearly equiatomic NiTi alloy is hydrothermally treated in a urea solution at 150°C to form nanostructures at the surface, with the aim to improve the structural quality of sol-gel deposited TiO2 film. Nanosheets film of ammonium titanate is formed on NiTi alloy after 8 h hydrothermal treatment, and the sol-gel TiO2 film on it is smooth and crack-free. Anatase TiO2 films consisting of nanoparticles and granular deposits are formed on the NiTi samples hydrothermally treated for 16 h and 24 h. The subsequently deposited TiO2 films have short cracks, because the nanostructured films can not comple

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Łapiński, Marcin, Jakub Czubek, Katarzyna Drozdowska, Anna Synak, Wojciech Sadowski, and Barbara Kościelska. "Plasmon-enhanced photoluminescence from TiO₂ and TeO₂ thin films doped by Eu³⁺ for optoelectronic applications." Beilstein Journal of Nanotechnology 12 (November 22, 2021): 1271–78. http://dx.doi.org/10.3762/bjnano.12.94.

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In this work we study the luminescence properties of europium-doped titanium dioxide and tellurium oxide thin films enhanced by gold plasmonic nanostructures. We propose a new type of plasmon structure with an ultrathin dielectric film between plasmonic platform and luminescent material. Plasmonic platforms were manufactured through thermal annealing of the gold thin film. Thermal dewetting of gold film results in spherical gold nanostructures with average dimensions of 50 nm. Both, luminescent TiO2:Eu and TeO2:Eu films were deposited by RF magnetron sputtering from mosaic targets. The morphol

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Yoon, Sang-Hyeok, and Kyo-Seon Kim. "Doping Mo on Tungsten Oxide Thin Film and Photoelectrochemical Measurement." Journal of Nanoscience and Nanotechnology 21, no. 9 (2021): 4813–17. http://dx.doi.org/10.1166/jnn.2021.19256.

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Tungsten oxide (WO3) is semiconductor material which can be used for various applications. Especially, one-dimensional (1-D) nanostructured WO3 shows the high photoelectrochemical (PEC) performance due to high surface area and short transport route of electron–hole pair. The flame vapor deposition (FVD) process is an efficient and economical method for preparation of the 1-D nanos-tructured WO3 thin film. Molybdenum doping is a well-known method to improve the PEC performance of WO3 by reducing band gap and increasing electrical property. In this study, we prepared the 1-D WO3 nanostructures d

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Mikhailov, G. M., A. V. Chernykh, I. V. Malikov, and L. A. Fomin. "Multiterminal epitaxial tungsten nanostructures on MgO/GaAs(001) substrates: Temperature effects in ballistic electron transport." Journal of Applied Physics 132, no. 16 (2022): 164304. http://dx.doi.org/10.1063/5.0103350.

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High-quality single-crystalline multiterminal tungsten nanostructures were fabricated on MgO/GaAs (001) substrates using subtractive lithography. Single-crystalline tungsten films with a thickness of d = 80 nm and low roughness were grown using sequential epitaxy of MgO (001) and W (001) layers on GaAs (001) via pulsed laser deposition. The temperature dependence of bridge-type nanostructure electron conductivity indicates that they are high-quality metal conductors. The electron mean free path reached 760 nm at low temperatures and was approximately an order of magnitude greater than the tung

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Liu, Sheng Jun. "The Plasmonic Nanostructures Applied in the Photovoltaic Cell." Advanced Materials Research 893 (February 2014): 186–89. http://dx.doi.org/10.4028/www.scientific.net/amr.893.186.

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Plasmonic, including of located surface Plasmon resonance (LSPR) and surface plasmon polariton (SPP), is a special kind of electromagnetic mode in nanometer scale. Plasmonic nanostructures can be generated to improving the conversion efficiency of photovoltaic devices. In the paper, the concepts of plasmonic and their influences by different metal nanostructure were introduced. Then the different principles of light utilization of plasmonic nanostructure in thin film photovoltaic cell was analyzed.

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Matsushita, Yuito, Tomohiro Shimizu, Shoso Shingubara, and Takeshi Ito. "Anti-Microbial Property of SiO₂ or SnO₂ Thin Film Coated Resin Nanostructures." ECS Meeting Abstracts MA2024-02, no. 25 (2024): 2045. https://doi.org/10.1149/ma2024-02252045mtgabs.

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Nano and micro patterns in nature show many beneficial properties. For examples, the wings of cicadas and dragonflies have sprawled with nano-sized bumps which express bactericidal and antibacterial property physically. The physical antimicrobial property is a promising new tool to combat antimicrobial resistance (AMR) bacteria. The number of deaths related to AMR infection was estimated over 70,000 which was firstly reported by O’Neil. The value increased to 1,270,000 only 4 years after that report. Therefore, new antimicrobial technologies that are not chemically driven are needed. The bacte

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Yap, Seong Shan, Chen Hon Nee, Seong Ling Yap, and Teck Yong Tou. "Nanostructured Diamond-Like Carbon Films Grown by Off-Axis Pulsed Laser Deposition." Journal of Nanomaterials 2015 (2015): 1–6. http://dx.doi.org/10.1155/2015/731306.

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Nanostructured diamond-like carbon (DLC) films instead of the ultrasmooth film were obtained by pulsed laser ablation of pyrolytic graphite. Deposition was performed at room temperature in vacuum with substrates placed at off-axis position. The configuration utilized high density plasma plume arriving at low effective angle for the formation of nanostructured DLC. Nanostructures with maximum size of 50 nm were deposited as compared to the ultrasmooth DLC films obtained in a conventional deposition. The Raman spectra of the films confirmed that the films were diamond-like/amorphous in nature. A

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Revutska, L., O. Shylenko, A. Stronski, V. Komanicky, and V. Bilanych. "Electron-beam recording of surface structures on As-S-Se chalcogenide thin films." Фізика і хімія твердого тіла 21, no. 1 (2020): 146–50. http://dx.doi.org/10.15330/pcss.21.1.146-150.

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The effect of electron beam irradiation on the amorphous chalcogenide film As38S36Se26 was studied. The formation of cones with a Gaussian profile on the surfaces of the films was found after local electron irradiation. Exposition dependent evolution of height surface nanostructures has been detected. The dependence of the height of surface nanostructures on the dose of irradiation is analyzed. Charge accumulation model into interaction region between the film and the electron beam was used to explain the electron-induced phenomena of the surface structure of amorphous As38S36Se26 films. Charg

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Łapński, M., J. Czubek, K. Drozdowska, et al. "Influence of plasmon resonance on the luminescence of titanium dioxide thin films doped with rare earth ions." Journal of Physics: Conference Series 2103, no. 1 (2021): 012126. http://dx.doi.org/10.1088/1742-6596/2103/1/012126.

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Abstract In this work the study of the optical properties of europium doped titanium dioxide thin films (TiO2:Eu) enhanced by gold plasmonic nanostructures are presented. Plasmonic platforms were manufactured by thermal annealing of thin film of Au, deposited on a Corning glass substrate. As a result of thermal treatment, gold spherical nanostructures with average dimensions of 50 nm were obtained. Luminescent TiO2:Eu film was deposited by RF magnetron sputtering method, from mosaic target. Morphology of gold nanostructures was investigated by SEM and TEM microscopes, while composition of oxid

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Ruffino, Francesco, and Maria Grazia Grimaldi. "Nanostructuration of Thin Metal Films by Pulsed Laser Irradiations: A Review." Nanomaterials 9, no. 8 (2019): 1133. http://dx.doi.org/10.3390/nano9081133.

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Metal nanostructures are, nowadays, extensively used in applications such as catalysis, electronics, sensing, optoelectronics and others. These applications require the possibility to design and fabricate metal nanostructures directly on functional substrates, with specifically controlled shapes, sizes, structures and reduced costs. A promising route towards the controlled fabrication of surface-supported metal nanostructures is the processing of substrate-deposited thin metal films by fast and ultrafast pulsed lasers. In fact, the processes occurring for laser-irradiated metal films (melting,

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Kulis-Kapuscinska, Anna, Monika Kwoka, Michal Adam Borysiewicz, Massimo Sgarzi, and Gianaurelio Cuniberti. "ZnO Low-Dimensional Thin Films Used as a Potential Material for Water Treatment." Engineering Proceedings 6, no. 1 (2021): 10. http://dx.doi.org/10.3390/i3s2021dresden-10131.

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In this work, the properties of zinc oxide (ZnO) low-dimensional conductive oxide nanostructures in the aspect of their potential applications in microelectronics, in toxic gas sensing, as well as in water remediation, have been determined. ZnO nanostructured porous thin films deposited by DC reactive sputtering (RS) have been deposited on Si substrates at different temperature conditions. For surface properties and chemical morphology analysis, X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy (SEM) have been used. Thanks to these techniques, it was possible to obtain in

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Bagarinao, Katherine Develos, Ozden Celikbilek, Gwilherm Kerherve, Sarah Fearn, Stephen J. Skinner, and Haruo Kishimoto. "Nanostructured LSC Thin Film Electrodes with Improved Electrochemical Performance and Long-Term Stability." ECS Meeting Abstracts MA2023-01, no. 54 (2023): 113. http://dx.doi.org/10.1149/ma2023-0154113mtgabs.

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Nanostructured La0.6Sr0.4CoO3-δ (LSC) thin film electrodes exhibit exceptionally high oxygen surface exchange properties, surpassing those of conventional microscale electrode structures, which are desirable for application in solid oxide cells (SOC) [1-2]. On the other hand, the LSC nanostructures also tend to undergo significant morphological changes at typically high temperatures required for SOC operation, leading to rapid degradation in performance. Here, towards the goal of improving the long-term stability of electrochemical performance of nanostructured LSC thin films, a systematic inv

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Zhang, Hongxin, Tianqing Jia, Kan Zhou, et al. "Fabrication of gold micro/nanostructures by femtosecond laser direct writing and chemical etching." Journal of Nonlinear Optical Physics & Materials 23, no. 04 (2014): 1450048. http://dx.doi.org/10.1142/s0218863514500489.

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In this paper, we report gold micro/nanostructures fabricated by a method called lithographically patterned nanostructure by chemical etching (LPNCE). In the LPNCE method, the photoresist layer, composed of pentaerythritol triacrylate (PETA, monomer) and isopropyl thioxanthone (ITX, photoinitiator), is dropped on gold film, and subsequently polymerized via two-photon absorption of 800 nm femtosecond laser. Micro/nanostructures are fabricated by the direct laser writing. The unpolymerized photoresist is washed by isopropanol, and the exposed gold is dissolved by KI 3 aqueous solution. Finally,

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Ma, Chi, and Huan Lou. "Dual functional anode for organic light-emitting devices by directly imprinted nanostructured ultrathin Au film." Applied Physics Letters 120, no. 17 (2022): 173501. http://dx.doi.org/10.1063/5.0083482.

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The ultrathin metal film with excellent electrical conductivity and high visible-band transmittance has attracted considerable attention as a transparent electrode for the organic light-emitting devices (OLEDs). However, the deficient surface morphology and poor continuity of low thickness evaporated metal films and the surface plasmon-polaritons (SPPs) mode induced energy loss still seriously limit the actual efficiency of OLEDs. In this work, the thermal nanoimprint lithography has been further modified and directly applied to fabricate nanostructures onto the ultrathin Au film. During the i

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Mohamed, Ruziana, Khairunisa Md Salleh, Mohd Firdaus Malek, et al. "The Influence of Growth Duration Process on Morphology and Electrical Properties of SnO₂ Nanostructured Films." Solid State Phenomena 268 (October 2017): 274–78. http://dx.doi.org/10.4028/www.scientific.net/ssp.268.274.

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Tin oxide (SnO2) nanostructured thin film with different immersion times was prepared on zinc oxide (ZnO) seeded catalyst using immersion method. The immersion times were varied at 3.0, 3.5 and 4.0 hours. Field emission scanning electron microscopy (FESEM) and two point probes current-voltage (I-V) measurements were used to study the surface morphology and electrical properties of SnO2 nanostructured thin films. The diameter size of SnO2 nanostructures which immersed at 3.0, 3.5 and 4.0 h were in range 10-20 nm, 20-30 nm and 30-50 nm, respectively. The results shows the highest electrical prop

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Chhoker, S., S. K. Arora, P. Srivastava, and V. D. Vankar. "Electron Field Emission from Graphitic Nanoflakes Grown Over Vertically Aligned Carbon Nanotubes." Journal of Nanoscience and Nanotechnology 8, no. 8 (2008): 4309–13. http://dx.doi.org/10.1166/jnn.2008.an39.

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Single step growth of self-assembled graphitic nanoflakes (GNF) over carbon nanotubes (CNT) on iron coated silicon(100) substrates is reported. These nanostructures were grown by varying the deposition time in a microwave plasma enhanced chemical vapor deposition reactor using acetylene, hydrogen and argon as reactant gases. Scanning electron microscope (SEM) studies of the deposited carbon films revealed that with increase in deposition time from 3 minutes to 6 minutes, the surface topography of the films transformed from one dimensional cylindrical nanostructure to flat-shaped two-dimensiona

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Butusov, Leonid A., Galina K. Chudinova, Margarita V. Kochneva, et al. "Fluorescence Properties of Tb-Doped ZnO Porous Network Thin Film Grown on Monocrystalline Silicon Substrate." Materials Science Forum 934 (October 2018): 3–7. http://dx.doi.org/10.4028/www.scientific.net/msf.934.3.

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This research presents a new perspective on optical biosensors based on zinc oxide nanoparticles. The widely known and successfully applied nanostructured material is modified by the dopant - the green phosphor Terbium, which embedded in the structure of zinc oxide and makes a significant contribution to the fluorescent response of the material in both the UV and visible spectral regions. The effect of various dopant concentrations on the fluorescence of nanostructures was studied; the nanostructures were examined by SEM.

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Rudenkov, A. S., M. A. Yarmolenko, A. A. Rogachev, A. P. Surzhikov, A. P. Luchnikov, and O. A. Frolova. "Phase composition and morphology of nanostructured coatings deposited by laser dispersion of a mixture of polyethylene with iron oxalate." Bulletin of the Karaganda University. "Physics" Series 99, no. 3 (2020): 22–30. http://dx.doi.org/10.31489/2020ph3/22-30.

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Peculiarities of forming of iron oxide coatings with reinforced carbon nanostructures from gas phase generated by laser dispersion of composite target were explored. Influence of technological modes of heat treatment on morphology and phase composition of nanostructured film layers was determined. It was found that on a substrate highly dispersed layers containing carbon nanostructures are formed. Using Raman spectroscopy it was shown that in oxide matrix carbon structures, which are mainly in the form of planar located nanotubes, appear. It was found that with a mass ratio of polyethylene and

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Bagarinao, Katherine Develos, Ozden Celikbilek, Gwilherm Kerherve, Sarah Fearn, Stephen J. Skinner, and Haruo Kishimoto. "Nanostructured LSC Thin Film Electrodes with Improved Electrochemical Performance and Long-Term Stability." ECS Transactions 111, no. 6 (2023): 731–36. http://dx.doi.org/10.1149/11106.0731ecst.

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Nanostructured La0.6Sr0.4CoO3- δ (LSC) thin film electrodes exhibit exceptionally high oxygen surface exchange properties, surpassing those of conventional microscale electrode structures, which are desirable for application in solid oxide cells (SOCs). Here, towards the goal of improving the long-term stability of electrochemical performance of nanostructured LSC thin films, a systematic investigation of the effect of processing temperatures on long-term stability was carried out. By varying the deposition temperature (from 500 °C to room temperature), the as-grown characteristic nanostructur

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A. Hussain, Abdulkareem, and Qahtan N. Abdullah. "Studying the Structural, Optical and Electrical Properties of ZnO: SnO2 Thin Films as an Application of a Gas Sensor Using Vacuum Thermal Evaporation Technique." Tikrit Journal of Pure Science 28, no. 6 (2023): 66–75. http://dx.doi.org/10.25130/tjps.v28i6.1379.

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In this work, thermal evaporation in vacuum technique was used to prepare the ZnO thin films as pure and doped with SnO2 NPs on glass substrates. The XRD pattern showed the hexagonal structure of ZnO with (002) preferred orientation. The EDX technique was used to investigate the contents of the film elements prepared which consisted of Zn, Sn and O. The concentration of Zn, O and Sn in the nanostructure films was different for all doping ratios. Thickness and morphology surface of the films were calculated from cross section of the surface films (~144 nm) using scanning electron microscopy ima

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Ono, Sachiko. "Nanostructure Analysis of Anodic Films Formed on Aluminum-Focusing on the Effects of Electric Field Strength and Electrolyte Anions." Molecules 26, no. 23 (2021): 7270. http://dx.doi.org/10.3390/molecules26237270.

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In this review, the research conducted by the authors on anodic oxide films on aluminum is described, paying particular attention to how the electric field strength, as a factor other than voltage, controls the nanostructures and properties of the films. It will also be indicated what factors contribute to the formation of defects, which, in contrast to the ideal or model film structure, contains a significant number of defects in the film. In addition to electrochemical measurements, the films were examined with a variety of advanced instruments, including electron microscopes, to confirm the

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Shen, Tianyi, Qiwen Tan, Zhenghong Dai, Nitin P. Padture, and Domenico Pacifici. "Arrays of Plasmonic Nanostructures for Absorption Enhancement in Perovskite Thin Films." Nanomaterials 10, no. 7 (2020): 1342. http://dx.doi.org/10.3390/nano10071342.

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We report optical characterization and theoretical simulation of plasmon enhanced methylammonium lead iodide (MAPbI 3 ) thin-film perovskite solar cells. Specifically, various nanohole (NH) and nanodisk (ND) arrays are fabricated on gold/MAPbI 3 interfaces. Significant absorption enhancement is observed experimentally in 75 nm and 110 nm-thick perovskite films. As a result of increased light scattering by plasmonic concentrators, the original Fabry–Pérot thin-film cavity effects are suppressed in specific structures. However, thanks to field enhancement caused by plasmonic resonances and in-pl

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