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Journal articles on the topic 'Double-layer film'

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1

Jih, Myeong-Kwan, Sang-Ho Lee, and Nan-Young Lee. "Physical and chemical properties of double-layers adhesive polymer film supplemented with 5% NaF." Journal of The Korean Dental Association 59, no. 4 (2021): 204–12. http://dx.doi.org/10.22974/jkda.2021.59.4.001.

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Objective: To improve the remineralization effect of fluoride adhesion film, we developed a double-layers adhesive film, and then evaluate its physical properties and fluoride-releasing ability.Methods: The tensile strength, elongation, dissolution rate and fluoride-releasing capacity characteristics of the adhesive films were analyzed.Results: There was no variation in thickness among the adhesive films. The tensile strength was highest in the polyvinyl alcohol (PVA) adhesive film and lowest in the pullulan adhesive film. The elongation rate was highest in pullulan film, followed by PVA-pullu
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2

Park, Dasom, and Sanggyu Yim. "Simple Morphological Control of ZnPc Thin Films Grown on SubPc Underlayer#." Bulletin of the Korean Chemical Society 36, no. 3 (2015): 748–51. http://dx.doi.org/10.1002/bkcs.10136.

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Morphological templating in molecular double‐layer thin films, i.e., the phenomenon where the surface morphology of the top layer is strongly influenced by that of the underlying layer, was investigated to control the surface nanomorphology of zinc phthalocyanine (ZnPc) thin films. Three types of molecular thin films, ZnPc single‐layer, chloro[subphthalocyaninato]boron(III) (SubPc) single‐layer, and ZnPc on SubPc (SubPc/ZnPc) double‐layer thin films were grown on glass substrates and post‐annealed at 250 °C. While the changes in surface roughness and morphology of the ZnPc single layer were ne
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3

Xu, Qin, Beibei Li, Zhengwei Xu, et al. "PCL Based CIP-Loaded Double-Layer Films Deposited by Low-Electron Beam Dispersion Method and its Antibacterial Properties." Eurasian Chemico-Technological Journal 22, no. 4 (2020): 255. http://dx.doi.org/10.18321/ectj997.

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In this paper, low-electron beam dispersion (EBD) method is used to prepare a kind of double-layer films on different substrates. The bottom layer is a mechanically stirred mixture of the degradable polycaprolactone (PCL) and ciprofloxacin (CIP), and the top layer is polyurethane (PU) film. The molecular structure, chemical composition and morphology of the double-layer films were investigated by FTIR, XPS and SEM. The results showed that the surfaces of the double-layer films are uniform and the thicknesses can reach micron level. In addition, the two layers are well bonded. Then the films we
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4

Cheng, Yong, Shu Yun Wang, Yi Min Lu, et al. "Research of Diamond-Like Carbon Film Deposited by Double Pulsed Lasers." Advances in Science and Technology 95 (October 2014): 11–16. http://dx.doi.org/10.4028/www.scientific.net/ast.95.11.

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In the research of Diamond-like carbon (DLC) Film deposited by pulsed laser, method of double pulsed laser deposition was presented. Ti:Sapphire (800nm, 120fs) laser and KrF (248nm, 20ns) laser were used orderly to ablate graphite target. Through controlling parameters of two laser beams, double-layer DLC film was deposited on silicon substrate. The hardness and inner-stress of the DLC film changed gradually from substrate to atmosphere-interface. Nanoindentation measurement system and fourier transfer infrared spectrograph were used to hardness and transmittance of the film. Meanwhile, adhesi
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Kim, Donghwan, Yonghee Jo, Dae Hyun Jung, Jae Suk Lee, and TaeWan Kim. "Electrical and Optical Characteristics of Two-Dimensional MoS2 Film Grown by Metal-Organic Chemical Vapor Deposition." Journal of Nanoscience and Nanotechnology 20, no. 6 (2020): 3563–67. http://dx.doi.org/10.1166/jnn.2020.17490.

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Atomically thin molybdenum disulfide (MoS2) films were synthesized on a SiO2/Si substrate by metal-organic chemical vapor deposition (MOCVD). Raman spectroscopy, transmission electron microscopy, and X-ray photoelectron spectroscopy studies reveal the double-atomic-layer structure and the surface element composition of the MOCVD-grown MoS2 films. The photoluminescence measurement demonstrates a strong emission peak with a bandgap of 685.1 nm, attributed to highly efficient radiative transition at the double atomic layer. The contact resistance between the doubleatomic-layer MoS2 film and metal
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6

Shen, Chih Long, Po Cheng Kuo, S. C. Chen, et al. "Co3Pt Nanocomposite Films for Perpendicular Magnetic Recording Media." Advanced Materials Research 123-125 (August 2010): 27–30. http://dx.doi.org/10.4028/www.scientific.net/amr.123-125.27.

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The Co3Pt magnetic layer with thickness of 7~28 nm was deposited onto the Pt underlayer. The as-deposited Co3Pt/Pt double-layered films with or without a 5 nm Pt capped layer were annealed at temperatures between 275 and 375 °C in vacuum of 1 mTorr. The influences of process parameters on perpendicular magnetic properties of Co3Pt thin films were investigated. The Co3Pt film with perpendicular coercivity (Hc⊥) value of 3620 Oe and the perpendicular squareness (S⊥) of 0.7 could be achieved from the Co3Pt(18 nm)/Pt(100 nm) double-layered films by annealing at 300°C. Further added Tb30Co70 film o
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7

Huang, Kai Jin, Shou Wei Ma та Fang Li Yuan. "High Ethanol Gas Sensitivity of Nano γ-Fe2O3/ZnO Double-Layer Films Prepared by the Screen Printing Technology and the Hydrothermal Method". Applied Mechanics and Materials 151 (січень 2012): 350–54. http://dx.doi.org/10.4028/www.scientific.net/amm.151.350.

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The gas sensor with high ethanol gas sensitivity made of nano γ-Fe2O3/ZnO double-layer films was fabricated by the screen printing technology and the hydrothermal process with addition of citric acid (CA) surfactant based on Zn(NO3)2·6H2O and HMTA. XRD and SEM techniques were used to characterize the phases and morphologies of the films. The gas sensing properties of the gas sensor to ethanol were investigated. The result shows that the gas sensitivity of the nano γ-Fe2O3/ZnO double-layer films is higher than that of the nano γ-Fe2O3 single-layer film fabricated by the screen printing technolo
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8

Кузьмин, М. В., М. А. Митцев та С. В. Сорокина. "Влияние двойного электрического слоя на адсорбционные и каталитические свойства поверхности нанопленок иттербия". Журнал технической физики 93, № 6 (2023): 829. http://dx.doi.org/10.21883/jtf.2023.06.55609.34-23.

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The influence of an electric double layer on the surface of nanometer-thick ytterbium films grown on a Si(111) substrate on their adsorption and catalytic properties has been studied. It is shown that charge density waves (Friedel oscillations) generated in such nanofilms by the Si interface cause nonmonotonic changes of the distance in the double layer with increasing thickness. In turn, compression and expansion of the double layer lead to size dependences of the adsorption-catalytic properties of the film surface. In particular, as the film thickness increases, the adsorption character and
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9

Park, Su Kyung, Soong-Hyuck Suh, Min Woo Lee, Tae Kwan Yun, and Jae Young Bae. "The Effect of Scattering Layer on the Performance of Dye-Sensitized Solar Cells Using TiO2 Hollow Spheres/TiO2 Nanoparticles Films as Photoanodes." Journal of Nanoscience and Nanotechnology 15, no. 10 (2015): 8295–98. http://dx.doi.org/10.1166/jnn.2015.11273.

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TiO2 hollow spheres were successfully synthesized using poly styrene as the template. Dyesensitized solar cells are fabricated based on double-layered composite films of TiO2 nanoparticles and TiO2 hollow spheres. The photoelectric conversion performances of Dye-sensitized solar cells based on TiO2 nanoparticles/TiO2 nanoparticles, TiO2 nanoparticles/TiO2 hollow spheres and TiO2 hollow spheres/TiO2 hollow spheres double-layered films are investigated, and their photoelectric conversion efficiencies were determined to 4.52, 7.10 and 5.48%, respectively. Dye-sensitized solar cells based on doubl
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10

Xu, Zhi Yong, Zhong Wen Lan, Ke Sun, et al. "Properties of Ba-Hexaferrite Thin Films with Different Layer Structures." Advanced Materials Research 774-776 (September 2013): 935–39. http://dx.doi.org/10.4028/www.scientific.net/amr.774-776.935.

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M-type Ba-hexaferrite (BaM) thin films with two different structures (single layered and double layered) were deposited on (001) Al2O3 substrates by RF magnetron sputtering. The changes in microstructural and magnetic properties of the films corresponding to different layer structures and substrate temperatures (Ts) were investigated. Experimental results indicated that for the single layered films deposited directly on substrates at Ts = 300 °C and Ts = 500 °C, most of the grains are acicular type grains with their c-axis in-plane and/or randomly oriented. However, in the double layered film
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11

Tkaczewska, Joanna, Ewelina Jamróz, Paulina Guzik, and Michał Kopeć. "Attempt to Extend the Shelf-Life of Fish Products by Means of Innovative Double-Layer Active Biodegradable Films." Polymers 14, no. 9 (2022): 1717. http://dx.doi.org/10.3390/polym14091717.

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In this study, we aimed to produce, innovative and, at the same time, environmentally-friendly, biopolymer double-layer films with fish processing waste and active lingonberry extract as additives. These double-layered films were based on furcellaran (FUR) (1st layer) and carboxymethyl cellulose (CMC) with a gelatin hydrolysate (HGEL) (2nd layer). The aim of the study was to assess their impact on the durability of perishable salmon fillets during storage, and to evaluate their degree of biodegradation. The fillets were analyzed for changes in microbiological quality (total microbial count, ye
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12

Wu, Hai Jiang, and Fei Ying Yang. "Synergistic Corrosion Resistance of Cerium Film and Silane Film on Hot-Dip Galvanized Steel." Applied Mechanics and Materials 34-35 (October 2010): 2021–25. http://dx.doi.org/10.4028/www.scientific.net/amm.34-35.2021.

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This work aims at developing a new environmental-friendly treatment for hot-dip galvanized (HDG) steel as alternative to the classic systems based on chromates. A double layer film on the HDG steel sheets was prepared by immersing the sheets in 5 g/L Ce(NO3)3 aqueous solution and 5 vol.% silane solution in turn. The morphology of the cerium conversion film was analyzed using scanning electron microscopy (SEM). The corrosion resistance of the films was investigated by linear polarization (LPR) and natural salt spray (NSS) tests. The results show that the surface morphology of cerium conversion
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13

Kunst, Sandra Raquel, Rogério Freitas dos Santos, Cláudia Trindade Oliveira, Elen Leal da Silva, Iduvirges Lourdes Müller, and Célia de Fraga Malfatti. "The Behavior of Galvanized Steel Coated with a Double and Triple Layer of Hybrid Films." Materials Science Forum 727-728 (August 2012): 1604–9. http://dx.doi.org/10.4028/www.scientific.net/msf.727-728.1604.

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The aim of this work is to characterize by electrochemical, physicochemical and morphological analysis the hybrid films applied on galvanized steel by dip-coating process. Preliminaries studies showed that a monolayer of silane is not enough to increase the corrosion resistance protection of the substrate. In this context, the galvanized steel was coated with a double and triple layer of hybrid film obtained from a sol constituted by silane precursors 3 - (trimetoxisililpropil) methacrylate (TMSPMA) and tetraethoxysilane (TEOS) with addition of cerium nitrate at a concentration of 0.01M. The h
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14

Zhou, Qi, Ping Zhao, Chun Lin He, and Qing Kui Cai. "Alumina Sol-Gel Film for Pretreatment to Paint on Aluminum Alloy." Advanced Materials Research 239-242 (May 2011): 1678–81. http://dx.doi.org/10.4028/www.scientific.net/amr.239-242.1678.

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Aluminum alloy coatings for pretreatment are developed by sol-gel method. The adhesion between sol-gel film and the paint film was measured by scratching circles and corrosion resistance of sol-gel film was tested by salt spraying experiment. The adhesion between sol-gel film made by pure alumina sol and the paint film was so poor that it is unsuitable for ground coatings, but the composite sol which ultrafine Al2O3 powder was added to pure alumina sol can improve the adhesion and corrosion resistance. If the first layer film is made of pure alumina sol and the second layer is made of composit
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15

Lin, G. P., Po Cheng Kuo, Y. H. Fang, Sin Liang Ou, and S. C. Chen. "Exchange Effect in TM-TbCo/RE-TbCo Double Layer Films." Advanced Materials Research 47-50 (June 2008): 781–84. http://dx.doi.org/10.4028/www.scientific.net/amr.47-50.781.

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The High saturation magnetization (Ms) media are desired to yield large flux density for high resolution giant magnetoresistive head readout in Heat Assisted Magnetic Recording (HAMR). To ensure adequate stability of small size domains, the media for HAMR should possess large coercivity (Hc). In this work, we study of interface wall energy and the behavior of the magnetization of each layer in exchange coupled doubled-layered (ECDL) films. The Tb17Co83 (90 nm)/Tb30Co70 ECDL films with different Tb30Co70 thickness (20, 35, 50, 70, 90 nm) are made to increase the Ms value. As the thickness of Tb
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16

Malagurski, Ivana, Jelena Lazic, Tatjana Ilic-Tomic, et al. "Double layer bacterial nanocellulose - poly(hydroxyoctanoate) film activated by prodigiosin as sustainable, transparent, UV-blocking material." International Journal of Biological Macromolecules 279, no. 2024 (2024): 135087. https://doi.org/10.1016/j.ijbiomac.2024.135087.

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Synthetic materials alternatives are crucial for reaching sustainable development goals and waste reduction.Biomaterials and biomolecules obtained through bacterial fermentation offer a viable solution. Double-layeractive UV-blocking material composed of bacterial nanocellulose as an inner layer and poly(hydroxyoctanoicacid) containing prodigiosin as an active compound was produced by layer-by-layer deposition. This studyreferred the new material consisted of the three components produced in sustainable manner, by bacterial activity:bacterial bio-pigment prodigiosin, bacterial nanocellulose an
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17

Jia, Q. X., H. J. Lee, E. Ma, W. A. Anderson, and F. M. Collins. "Stable thin film resistors using double layer structure." Journal of Materials Research 10, no. 6 (1995): 1523–28. http://dx.doi.org/10.1557/jmr.1995.1523.

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Highly stable bilayer thin film resistors, which consist of an underlying layer of tantalum nitride and of a capping layer of ruthenium oxide, were developed by taking advantage of the desired characteristics of two different materials in a single system. The resistors fabricated in such a way were highly stable under power loading or thermal cycling. Resistors with one digit temperature coefficient of resistance (TCR) could be easily controlled by the layer thickness ratio of the tantalum nitride to the ruthenium oxide and the ex situ annealing temperature or duration. Auger electron spectros
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18

Li, Tian, J. M. T. Davies, and Xiangzhen Zhu. "Revealing the structure and evolution of entrained oxide film in Mg–Y alloy castings." Journal of Materials Science 56, no. 29 (2021): 16671–85. http://dx.doi.org/10.1007/s10853-021-06333-y.

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AbstractThe structure and evolution of oxide film in Mg alloys have been a research objective for a long time but are still unclear up to now. In the present work, the structure of the entrained oxide film (which is also known as bifilm) in Mg–Y alloy castings protected by SF6/air cover gas was characterized. It was found that the entrained oxide film can be divided into two typical types: (1) single-layered F-rich films and (2) double-layered films with a F-rich inner layer and a F-poor outer layer. Based on the experimental phenomena and thermodynamic calculation, the evolution mechanism of
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19

Zhang, Yidong. "Enhanced tribological performance of CuS thin film on Si substrate: the case of APS-PAA buffer layer." Industrial Lubrication and Tribology 67, no. 1 (2015): 81–84. http://dx.doi.org/10.1108/ilt-06-2012-0054.

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Purpose – The purpose of this paper was to demonstrate the influence of a 3-aminopropyl-triethoxysilane–polyacrylic acid (amino propyl silane (APS)-PAA) buffer layer on the tribological performance of copper sulfide (CuS) thin film on silicon (Si) substrate. Design/methodology/approach – The APS-PAA buffer layer was first deposited on Si substrate by a self-assembling method. Then, the deposited film was coated by a CuS film by a successive ionic layer absorption and reaction (SILAR) method. The structures and morphologies of the prepared films were characterized by X-ray diffraction and atomi
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20

Sukoco, Aji, Yukihiro Yamamoto, Hiroyuki Harada, Atsushi Hashimoto, and Tomoyuki Yoshino. "Fish oil-containing edible films with active film incorporated with extract of Psidium guajava leaves: preparation and characterization of double-layered edible film." F1000Research 13 (July 19, 2024): 816. http://dx.doi.org/10.12688/f1000research.153383.1.

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Background The utilization of zein and gum arabic has grown in an attempt to formulate wall materials based on protein–polysaccharide complexes. This mixture provides a versatile shelter for hydrophilic (guava leaf extract, GLE) or lipophilic (fish oil, FO) bioactive compounds from unwanted environmental factors, and it can be used as an edible film-forming polymer. This study was undertaken to characterize FO-containing edible films that were double-layered with a film containing GLE. Methods Modified zein and gum arabic solutions (MG complex) were mixed at a ratio of 1:1.5 (v/v), adjusted to
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21

Taneja, Neha. "Deep Eutectic Solvent-Based Polymer Electrolyte Films for an Electrochemical Double Layer Cell." INTERANTIONAL JOURNAL OF SCIENTIFIC RESEARCH IN ENGINEERING AND MANAGEMENT 08, no. 06 (2024): 1–5. http://dx.doi.org/10.55041/ijsrem35953.

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Polymer electrolyte films based on DES were prepared with the solution cast technique. DES(ChCl-glycerol) was prepared with two different glycerols: one purchased from the industry and the other fabricated in the lab from waste vegetable oil. Two polymer electrolyte films were prepared with two different DES (industrial and from oil-based glycerol) were named D1 and D2, respectively. Fabricated polymer film (D1) with DES (prepared with industrial glycerol) shows excellent physical and thermochemical properties. The molecular and structural characteristics of the film were studied via FTIR and
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22

Abdullah, Wael. "Fabrication of SiO2-TiO2 Double Layers Anti-Reflection Coating by Sol-Gel Method and Study of its Optical Properties." International Letters of Chemistry, Physics and Astronomy 56 (July 2015): 142–50. http://dx.doi.org/10.18052/www.scipress.com/ilcpa.56.142.

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An inexpensive and easily adaptable to industry scale method is Sol-Gel used to get a double layer anti-reflection coating thin film from SiO2/TiO2 by dip coating technique and we found that the Q H thickness SiO2/TiO2 Double layer thin film gets the best results so, we get a reflectance 0.002-0.02 for ultraviolet region, 0-0.04 for visible region, and 0.004-0.04 for Near infra-red region, and it is better than a thin film from SiO2 mono layer or thin film from TiO2 mono layer individually.
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23

Abdullah, Wael. "Fabrication of SiO<sub>2</sub>-TiO<sub>2</sub> Double Layers Anti-Reflection Coating by Sol-Gel Method and Study of its Optical Properties." International Letters of Chemistry, Physics and Astronomy 56 (July 21, 2015): 142–50. http://dx.doi.org/10.56431/p-w5im3y.

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An inexpensive and easily adaptable to industry scale method is Sol-Gel used to get a double layer anti-reflection coating thin film from SiO2/TiO2 by dip coating technique and we found that the Q H thickness SiO2/TiO2 Double layer thin film gets the best results so, we get a reflectance 0.002-0.02 for ultraviolet region, 0-0.04 for visible region, and 0.004-0.04 for Near infra-red region, and it is better than a thin film from SiO2 mono layer or thin film from TiO2 mono layer individually.
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24

Huang, Kai Jin, Li Yan та Chang Sheng Xie. "Fabrication and Gas Sensing Properties of Nano γ-Fe2O3/ZnO Double-Layer Film Gas Sensor". Applied Mechanics and Materials 29-32 (серпень 2010): 602–6. http://dx.doi.org/10.4028/www.scientific.net/amm.29-32.602.

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The nano γ-Fe2O3/ZnO double-layer film gas sensor was fabricated by the screen printing technology and the hydrothermal method. XRD and SEM techniques were used to characterize the phases and morphologies of the film. The gas sensing properties of the gas sensor to ethanol were investigated. The result shows that the gas sensitivity of the gas sensor is higher than that of the nano γ-Fe2O3 single-layer film gas sensor and the nano ZnO single-layer film gas sensor. The high gas sensitivity of the nano γ-Fe2O3/ZnO double-layer film to ethanol was caused by the combined effect and nano effect.
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25

LI, LIANGLIANG, HONGJUN HEI, YONG MA, et al. "MICROSTRUCTURE AND MECHANICAL PROPERTY CHARACTERIZATION OF MULTILAYER FREE-STANDING DIAMOND/Mo FILMS." Surface Review and Letters 27, no. 02 (2019): 1950100. http://dx.doi.org/10.1142/s0218625x19501002.

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The monolayer diamond film and free-standing diamond/Mo multilayer films were prepared by combining microwave plasma chemical vapor deposition (MPCVD) and double glow plasma surface alloying (DGPSA) techniques. The result shows that the film grain size decreases from 70–80[Formula: see text][Formula: see text]m to [Formula: see text]–20[Formula: see text][Formula: see text]m with the layer number increasing from the monolayer diamond film with a columnar crystal structure to the seven-layer diamond/Mo films, indicating that the Mo interlayer can effectively reduce the grain size. The Mo2C is f
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26

Bergmann, R. B., T. J. Rinke, R. M. Hausner, M. Grauvogl, M. Vetter, and J. H. Werner. "Thin film solar cells on glass by transfer of monocrystalline Si films." International Journal of Photoenergy 1, no. 2 (1999): 89–93. http://dx.doi.org/10.1155/s1110662x99000173.

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Thin film solar cells based on monocrystalline Si films are transferred to a glass superstrate. Chemical vapor deposition serves to epitaxially deposit Si on quasi-monocrystalline Si films obtained from thermal crystallization of a double layer porous Si film on a Si wafer. A separation layer that forms during this crystallization process allows one to separate the epitaxial layer on top of the quasi-monocrystalline film from the starting Si wafer. We presently achieve an independently confirmed solar cell conversion efficiency of 9:26%. Ray tracing studies in combination with electrical devic
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27

Ai, Chunpeng, Xiaofeng Zhao, Sen Li, Yi Li, Yinnan Bai, and Dianzhong Wen. "Fabrication and Characteristic of a Double Piezoelectric Layer Acceleration Sensor Based on Li-Doped ZnO Thin Film." Micromachines 10, no. 5 (2019): 331. http://dx.doi.org/10.3390/mi10050331.

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In this paper, a double piezoelectric layer acceleration sensor based on Li-doped ZnO (LZO) thin film is presented. It is constituted by Pt/LZO/Pt/LZO/Pt/Ti functional layers and a Si cantilever beam with a proof mass. The LZO thin films were prepared by radio frequency (RF) magnetron sputtering. The composition, chemical structure, surface morphology, and thickness of the LZO thin film were analyzed. In order to study the effect of double piezoelectric layers on the sensitivity of the acceleration sensor, we designed two structural models (single and double piezoelectric layers) and fabricate
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28

Wu, Ping Ping, and Bing Rui Xing. "Phase Field Simulation on the Surface Morphology of Cu/Ti Nano Thin Film." Materials Science Forum 1035 (June 22, 2021): 712–17. http://dx.doi.org/10.4028/www.scientific.net/msf.1035.712.

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Cu/Ti binary thin film system has many applications for micro-/nano- electro mechanical systems (MEMS/NEMS), micro-electronics and optoelectronics. In nanoscale, the quality and many physical properties of nano thin films are strongly depended on its surface morphology. In the present paper the development of surface morphology of double layered Cu/Ti thin film heterostructure with different composition and thickness has been studied by using the phase field method. The developed method is based on solving Cahn-Hilliard equations of multi-order parameters with considering the interfacial energ
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29

SHUHAIMI, N. E. A., N. A. ALIAS, S. R. MAJID та A. K. AROF. "ELECTRICAL DOUBLE LAYER CAPACITOR WITH PROTON CONDUCTING κ-CARRAGEENAN–CHITOSAN ELECTROLYTES". Functional Materials Letters 01, № 03 (2008): 195–201. http://dx.doi.org/10.1142/s1793604708000423.

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Charge–discharge characteristics of electrical double layer capacitors (EDLCs) using κ-carrageenan–chitosan based electrolyte is the focus of the present work. Chitosan and κ-carrageenan were blended to obtain films with high mechanical strength. The room temperature conductivity of 0.5 g chitosan + 0.5 g κ-carrageenan (CCPA) film and 0.5 g chitosan + 0.5 g κ-carrageenan + 0.1765 g ammonium nitrate (CCPAAN) film are (1.38 ± 0.36) × 10-6 S cm -1 and (2.39 ± 0.83) × 10-4 S cm -1, respectively. The conducting species is H + and conduction occurs via a Grotthuss mechanism. The resistance of the ph
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30

Rao, T. V. V. L. N., S. Sufian, and Norani Muti Mohamed. "Analysis of Electric Double Layer on Thin Film Lubrication with Partial Slip." Advanced Materials Research 925 (April 2014): 538–42. http://dx.doi.org/10.4028/www.scientific.net/amr.925.538.

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This paper presents a model of electro-viscosity considering effects of electric double layer on thin film lubrication with partial slip. The apparent viscosity and modified Reynolds equation are derived with consideration of electric double layer with partial slip. The apparent viscosity includes the combined effects of the electro-viscosity, the viscosity of bulk fluid and slip length. The electro-viscosity depends on the zeta potential. The effects of electric double layer with partial boundary slip on load capacity are analyzed for one-dimensional slider bearing. The electric double layer
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31

Sukoco, Aji, Yukihiro Yamamoto, Hiroyuki Harada, Atsushi Hashimoto, and Tomoyuki Yoshino. "Fish oil-containing edible films with active film incorporated with extract of Psidium guajava leaves: preparation and characterization of double-layered edible film." F1000Research 13 (October 30, 2024): 816. http://dx.doi.org/10.12688/f1000research.153383.2.

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The utilization of zein and gum arabic has grown in an attempt to formulate wall materials based on protein–polysaccharide complexes. This mixture provides a versatile delivery system for hydrophilic (guava leaf extract, GLE) or lipophilic (fish oil, FO) bioactive compounds, and it can be used as an edible film-forming polymer. This study was undertaken to characterize FO-containing edible films that were double-layered with a film containing GLE. Modified zein and gum arabic solutions (MG complex) were mixed at a ratio of 1:1.5 (v/v), adjusted to pH 5, added with glycerol (20% of the complex)
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32

Huang, T. C., and W. Parrish. "X-Ray Fluorescence Analysis of Multi-Layer Thin Films." Advances in X-ray Analysis 29 (1985): 395–402. http://dx.doi.org/10.1154/s0376030800010508.

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AbstractThe characterization of multi-layer thin films by X-ray fluorescence using the fundamental parameter method and the LAMA-III program is described. Analyses of a double-layer FeMn/NiFe and two triple-layer NiFe/Cu/Cr and Cr/Cu/NiFe specimens show that the complex inter-layer absorption and secondary fluorescence effects were properly corrected. The compositions and thicknesses of all layers agreed to ±2% with corresponding single-layer films, a precisian comparable with bulk and single-layer thin film analyses.
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33

Loperena, A. P., I. L. Lehr, and S. B. Saidman. "Electrosynthesis of a Duplex Coating Consisting of a Cerium-Based Layer and a Polypyrrole Film for the Corrosion Protection of AISI 304 Stainless Steel." Journal of Material Science and Technology Research 8 (November 30, 2021): 1–11. http://dx.doi.org/10.31875/2410-4701.2021.08.1.

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Duplex coating consisting of an inner cerium-based layer and polypyrrole (PPy) film topcoat was electrodeposited onto AISI 304 stainless steel. The cerium-based coating was electrodeposited in solutions containing cerium nitrate at 50 ºC. The polymeric outer layer was electropolymerized in the presence of sodium bis(2-ethylhexyl) sulfosuccinate (AOT). The electrosynthesis was done under potentiostat conditions. The coatings were characterized by scanning electron microscopy (SEM) and energy dispersive x-ray spectrometry (EDX). The morphology of the double-layered cerium polypyrrole film shows
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34

CHEN, Y., J. C. ZHOU, B. X. ZHAO, and J. J. SUN. "SPUTTERED TiO2 FILMS FOR PHOTOVOLTAIC CELL'S ANTIREFLECTION COATING." International Journal of Nanoscience 11, no. 01 (2012): 1250008. http://dx.doi.org/10.1142/s0219581x12500081.

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TiO2 films were prepared by the magnetron sputter system with various oxygen partial pressure ratios, for the application of photovoltaic (PV) cells, TiO2 single-layer and SiO2/TiO2 double-layer antireflection (AR) coatings were deposited on Si substrate. The experimental results indicate that TiO2 film deposited at oxygen partial pressure ratio of 15.4% exhibits smooth surface morphology, amorphous structure, and good optical transmittance, which is suitable for AR coating in the PV cell structure system. Furthermore, the weighted average reflectance in the range of 400–900 nm was about 10.3%
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35

Zhang, Lei, Man Li, Hai Jian Li, and Xin Song. "Measurement of Multilayer Film Thickness Using X-Ray Fluorescence Spectrometer." Key Engineering Materials 726 (January 2017): 85–89. http://dx.doi.org/10.4028/www.scientific.net/kem.726.85.

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Energy dispersive X-ray fluorescence spectrometry (EDXRF) allows a rapid determination of the concentration of elemental constituents or the thickness of thin film, it has been widely used in the industry of thin film thickness. But for multilayer film, especially the middle layer, with the absorption and enhance effect of other layers, the thickness and intensity of the middle layer is not a linear relationship. This paper reports a quantitative analysis of multilayer film thicknesses based on the use of EDXRF and fundamental parameters method. The thickness of multilayer film can be easily d
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36

Liu, Xiao Qing, Jun Lin Xie, Feng He, and Hu Yang. "Characterization of Glass-Ceramics by TEM." Key Engineering Materials 562-565 (July 2013): 809–12. http://dx.doi.org/10.4028/www.scientific.net/kem.562-565.809.

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The characterization technique of glass-ceramics by TEM was discussed by comparing the effects of single layer carbon film technique and double layers carbon film technique on the microstructure of Li-Al-Si glass-ceramics. The results show that double layers carbon film technique can improve glass-ceramics sample’s conductivity, reduce the induction of elctron beam on glass-ceramics, and avoid the temperature increasing of glass-ceramics particles caused by the charges aggregation on the particles’ surface when TEM electron beam hit down, prevent glass-ceramics from crystallization and the tra
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37

Liu, Huan, Liang Song, Shun Zhou, and Chang Long Cai. "Thin Metal Films and Multi-Layers Structure as Absorbers for Infrared Detectors." Materials Science Forum 663-665 (November 2010): 352–55. http://dx.doi.org/10.4028/www.scientific.net/msf.663-665.352.

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As thin metal films are known to act as wide-band absorbers for infrared radiation, in this paper Ni metal films are prepared on the Ge surface of double-sided polishing, The results showed the absorbing properties of the metal layer are strongly influenced by the dielectric function of the sensor material. This paper also describes one multi-layers structure as absorber. The structure included a reflector layer of 100-nm-thick Ti (e-beam evaporation), 2-µm-thick polyimide(spin-coating), and 14.9-nm-thick Ni film (e-beam evaporation). These contain a half transmissive thin metal film, a total
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38

Ksoll, Philipp, Christoph Meyer, Leonard Schüler, Vladimir Roddatis, and Vasily Moshnyaga. "B-Site Cation Ordering in Films, Superlattices, and Layer-by-Layer-Grown Double Perovskites." Crystals 11, no. 7 (2021): 734. http://dx.doi.org/10.3390/cryst11070734.

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The preparation of cation-ordered thin films of correlated oxides is of great interest for both fundamental and applied research. The scientific long-term vision is strongly motivated by the perspective of studying electronic correlations in condensed matter without the presence of chemical or quenched disorder. A promising material platform provides double perovskite A2BB’O6 bulk samples with different types of B/B’ ordering. However, the growth of A- and/or B-site-ordered correlated oxide thin films is known to be a challenging task. In this review, we evaluate the growth of double perovskit
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39

Lou, Bai Yang, Yi Xiang Tang, and Xiao Li. "The Research on Anticorrosion and Abrasion Behavior in Corrosive Medium of Micro-Arc Oxidation Film on Magnesium Alloy." Key Engineering Materials 474-476 (April 2011): 123–26. http://dx.doi.org/10.4028/www.scientific.net/kem.474-476.123.

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&lt;b&gt;&lt;/b&gt;In the sodium silicate electrolyte system, the uniform ceramic films formed on AZ91D magnesium alloys were obtained by the pulse power when the current density is 40mA/cm2. The morphology, phase composition, anticorrosion and abrasion resistance behaviors in corrosive medium were studied scanning electron microscopy (SEM). The results show that Micro-arc oxidation film is of double-layer structure (loose layer and compact layer), uniform surface and local cracks. Micro-arc oxidation treatment enhanced the anticorrosion of magnesium alloy. The corrosion potential of micro-arc
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40

Zhang, Ke, Na Liu, Robert J. Twieg, Brian C. Auman, and Philip J. Bos. "Pretilt study of double‐layer alignment film (DLAF)." Liquid Crystals 35, no. 10 (2008): 1191–97. http://dx.doi.org/10.1080/02678290802444103.

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41

Xu, Jiaqiang, Yu'an Shun, Qingyi Pan, and Jianhua Qin. "Sensing characteristics of double layer film of ZnO." Sensors and Actuators B: Chemical 66, no. 1-3 (2000): 161–63. http://dx.doi.org/10.1016/s0925-4005(00)00327-0.

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42

Tokarev, V. V. "MeBnMeSi2Si double-layer film structure synthesis." Materials Science and Engineering: B 8, no. 1 (1991): 39–43. http://dx.doi.org/10.1016/0921-5107(91)90016-o.

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43

Wang, Chao-Chun, Dong-Sing Wuu, Shui-Yang Lien, et al. "Characterization of Nanocrystalline SiGe Thin Film Solar Cell with Double Graded-Dead Absorption Layer." International Journal of Photoenergy 2012 (2012): 1–6. http://dx.doi.org/10.1155/2012/890284.

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The nanocrystalline silicon-germanium (nc-SiGe) thin films were deposited by high-frequency (27.12 MHz) plasma-enhanced chemical vapor deposition (HF-PECVD). The films were used in a silicon-based thin film solar cell with graded-dead absorption layer. The characterization of the nc-SiGe films are analyzed by scanning electron microscopy, UV-visible spectroscopy, and Fourier transform infrared absorption spectroscopy. The band gap of SiGe alloy can be adjusted between 0.8 and 1.7 eV by varying the gas ratio. For thin film solar cell application, using double graded-dead i-SiGe layers mainly le
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44

Tsai, Fa-Ta, Ching-Kong Chao, Kai-Jyun Jhong, and Rwei-Ching Chang. "Characterization of oxide barrier layers prepared by atomic layer deposition." Advances in Mechanical Engineering 9, no. 7 (2017): 168781401771180. http://dx.doi.org/10.1177/1687814017711809.

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Atomic layer deposition has become an important thin-film growth technique for producing gas diffusion barriers because of its low process temperature and its ability to produce uniform films. In this work, atomic layer deposition was used to deposit various Al2O3 and ZnO thin films on polyethylene terephthalate substrates; subsequently, the physical properties and water vapor transmission rates of the films were characterized. Single and hybrid films (Al2O3, ZnO, Al2O3/ZnO, and ZnO/Al2O3) with thicknesses of 25, 50, and 100 nm at a deposition temperature of 60°C were investigated. The deposit
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45

Lu, Chaoqun, Weijia Zhang, Zhaoyi Jiang, Yulong Zhang, and Cong Ni. "CuI/Spiro-OMeTAD Double-Layer Hole Transport Layer to Improve Photovoltaic Performance of Perovskite Solar Cells." Coatings 11, no. 8 (2021): 978. http://dx.doi.org/10.3390/coatings11080978.

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The hole transport layer (HTL) is one of the main factors affecting the efficiency and stability of perovskite solar cells (PSCs). However, obtaining HTLs with the desired properties through current preparation techniques remains a challenge. In the present study, we propose a new method which can be used to achieve a double-layer HTL, by inserting a CuI layer between the perovskite layer and Spiro-OMeTAD layer via a solution spin coating process. The CuI layer deposited on the surface of the perovskite film directly covers the rough perovskite surface, covering the surface defects of the pero
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46

Georgiou, E., D. T. Papageorgiou, C. Maldarelli, and D. S. Rumschitzki. "The double layer–capillary stability of an annular electrolyte fluid surrounding a dielectric-fluid core in a tube." Journal of Fluid Mechanics 226 (May 1991): 149–74. http://dx.doi.org/10.1017/s002211209100232x.

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In this paper we examine the linear stability of an annular film surrounding a dielectric-fluid core in a tube in the presence of double layers of charges at the film core and at the film–tube interfaces, when the fluid-fluid interface is of low tension. In the absence of electrostatic forces, the surface tension force arising from the circumferential curvature destabilizes, and that from the axial curvature stabilizes the system. The competition is such that waves larger than the unperturbed interface circumference are unstable and those shorter are stable. For charged layers in the film, two
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47

Shi, Shih-Chen, and Yao-Qing Peng. "Hydrophobicity and Macroscale Tribology Behavior of Stearic Acid/Hydroxypropyl Methylcellulose Dual-Layer Composite." Materials 14, no. 24 (2021): 7707. http://dx.doi.org/10.3390/ma14247707.

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Hydroxypropyl methylcellulose (HPMC) and stearic acid (SA) are integrated to fabricate a double-layer thin film composite material with potential applications in sustainable packaging and coating materials. The effect of SA concentration on the moisture and wear resistance at the macroscale of the composite are studied. The amount of SA on the surface (&gt;SA5H) is beneficial in increasing anti-wear behavior and reducing the friction coefficient by 25%. The petal-shaped crystals formed by SA are distributed on the surface of the double-layer film, increasing its hydrophobicity. When subjected
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48

Syrrokostas, George, George Leftheriotis, and Spyros N. Yannopoulos. "Double-Layered Zirconia Films for Carbon-Based Mesoscopic Perovskite Solar Cells and Photodetectors." Journal of Nanomaterials 2019 (May 22, 2019): 1–11. http://dx.doi.org/10.1155/2019/8348237.

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Carbon-based mesoscopic perovskite solar cells (PSCs) and photodetectors were fabricated with the application of double-layered ZrO2 films, consisting of zirconia nanoparticles and microparticles for the first and the second layer, respectively. This assembly exploits the ability of the zirconia microparticles to scatter and hence diffuse the incident light, causing a more efficient illumination of the perovskite layer. As a result, the photocurrent densities produced by a photodetector and a carbon-based PSC were increased by nearly 35% and 28%, respectively, compared to devices assembled usi
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Chu, Li Ming, Wang Long Li, Hsiang Chen Hsu, and Jung Shun Tsai. "Effects of Electric Double Layer on Pure Squeeze Motion of Circular Contacts - An Elastohydrodynamic Lubrication Model." Advanced Materials Research 486 (March 2012): 497–502. http://dx.doi.org/10.4028/www.scientific.net/amr.486.497.

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In this paper, the pure squeeze thin film elastohydrodynamic lubrication (TFEHL) motion of circular contacts with electric double layer (EDL) is explored under constant load condition. The coupled transient modified Reynolds, elasticity deformation, the load balance, and lubricant rheology equations were solved simultaneously by using the finite difference method and the Gauss-Seidel iteration method. The simulation results reveal that the effect of electric double layer produces an obvious increase in the film thickness and apparent viscosity. The greater the Zeta-potential, the greater the a
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50

Habib, Khaled, K. Al-Muhanna, F. Al-Sabti, and A. Al-Arbeed. "Measurement of Aluminium Oxide-Film Thickness: Barrier Oxide Film and Oxide Porous Layer." Defect and Diffusion Forum 273-276 (February 2008): 283–93. http://dx.doi.org/10.4028/www.scientific.net/ddf.273-276.283.

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In the present investigation, holographic interferometry was utilized for the first time to measure in situ the thickness of the oxide film, alternating current (A.C.) impedance, and double layer capacitance of aluminium samples during anodization processes in aqueous solution without any physical contact. The anodization process (oxidation) of the aluminium samples was carried out by the electrochemical impedance spectroscopy (EIS), in different concentrations of sulphuric acid (0.5-2.5 % H2SO4) at room temperature. In the mean time, the real-time holographic interferometric was used to measu
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