optical properties of zno thin films
Báo cáo toán học: " Structural and optical properties of ZnS thin films deposited by RF magnetron sputtering" potx
... temperatures on the structural properties of the films has been investigated, and the optical properties of the films have also been analyzed Methods Synthesis ZnS films were deposited onto a Corning ... and optical properties of CdS thin films grown by chemical bath deposition Thin Solid Films 2009, 518:1259-1262 Liu F, Lai Y, Liu J, Wang B, Kuang S, Zhang Z, Li J, Liu Y: Characterization of ... However, the FWHM value of the film prepared at 400°C increased to 0.154°, indicating the deterioration of the crystallinity of the films The mean crystallite sizes of the films were about 22.3,...
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DEFECT INDUCED NOVEL ELECTRICAL, MAGNETIC AND OPTICAL PROPERTIES OF TIO2 THIN FILMS GROWN BY PULSED LASER DEPOSITION
... characterization technique of thin films of Ti1-xTaxO2 PLD technique has been used for the film fabrication X-ray diffraction (XRD) studies have been carried out on the epitaxially grown thin films on STO ... reproduction of the stoichiometry of the charged material and in situ deposition of oxides without the requirement of any post-deposition process adds to the advantage of the technique On top of all ... application of RBS is the thickness measurement of thin film, because the width of the peak in the spectrum is proportional to the thickness (t) of the sample (Fig 2.3) once the density of the film...
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evaluation of shape and size effects on optical properties of zno pigment
... scale-like ZnO, which all of the scales have fairly uniform diameters about 300 nm and thicknesses of 50 nm In Fig 2(c) and (d), FE-SEM images of the submicrorods ZnO is shown The diameters of ZnO rods ... large scale, and all of the nanorods have diameters of about 50 nm and lengths of 300 nm Fig (i–k) exhibits the FESEM images of nanoparticle-decorated ZnO pigment The surface of ZnO pigment was decorated ... lengths of m The FE-SEM images of nanorod ZnO pigment are shown in Fig 2(g) and (h) It is found that the product is composed of well-dispersed Fig XRD patterns of the as-synthesized ZnO pigments...
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Báo cáo sinh học: " Influence of helium-ion bombardment on the optical properties of ZnO nanorods/p-GaN light emitting diodes" pot
... physical properties of ZnO nanostructures [19] The irradiation changes the amount of defects in ZnO nanorods resulting in changes in the optical properties of ZnO The effect of the ion irradiation of ... minor effect on optical properties of the LED devise after irradiation with moderate fluences Conclusion In summary, the influence of He+ ion irradiation on the optical properties of ZnO nanorods ... irradiation on the optical properties of ZnO nanorod-based LEDs There are only few reports about the effect of high-energy electrons irradiation that has been reported for ZnO [15], GaN [16–17],...
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báo cáo hóa học:" Influence of helium-ion bombardment on the optical properties of ZnO nanorods/p-GaN light emitting diodes" pdf
... physical properties of ZnO nanostructures [19] The irradiation changes the amount of defects in ZnO nanorods resulting in changes in the optical properties of ZnO The effect of the ion irradiation of ... minor effect on optical properties of the LED devise after irradiation with moderate fluences Conclusion In summary, the influence of He+ ion irradiation on the optical properties of ZnO nanorods ... irradiation on the optical properties of ZnO nanorod-based LEDs There are only few reports about the effect of high-energy electrons irradiation that has been reported for ZnO [15], GaN [16–17],...
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Báo cáo hóa học: " Effects of silver impurity on the structural, electrical, and optical properties of ZnO nanowires" doc
... p-type ZnO films with phosphorus doping J Appl Phys 2005, 98:043519 23 Lee SY, Shim ES, Kang HS, Pang SS, Kang JS: Fabrication of ZnO thin film diode using laser annealing Thin Solid Films 2005, ... optical properties of p-type ZnO thin films with Ag dopant Appl Phys Lett 2006, 88:202108 26 Song YW, Kim K, Ahn JP, Jang GE, Lee SY: Physically processed Ag-doped ZnO nanowires for all -ZnO p-n ... characterization of Ga-doped ZnO nanowire gas sensor for the detection of CO Thin Solid Films 2009, 518:1190 29 Kim K, Debnath PC, Park DH, Kim S, Lee SY: Controllability of threshold voltage in Ag-doped ZnO...
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Influences of titanium oxide additions on the electrochromic properties of WO3 thin films
... structural, electrochemical and electrochromic properties of the thin films Furthermore, in this chapter, the pure thin film and the titanium doped thin films are anodized in aqueous acidic solutions, ... WO3 thin films for their first cycle in CV test Table 4.3 List of optical and kinetic parameters for pure WO3 and TiO2 doped WO3 thin films obtained from Figure 4.13 and 4.14 at wavelengths of ... anodization of co-sputtered W/Ti in the organic electrolyte Chapter elaborates influences of different amount of TiO2 dopant on the electrochromic properties of pure WO3 thin film The TiO2 doped WO3 films...
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Application of micro cantilevers in characterization of crystallization induced stresses and mechanical properties of amorphous thin films
... and coefficients of thermal expansion of amorphous Cu-Zr thin films - 162 7.1 Measurement of Young’s modulus of amorphous Cu-Zr thin films - 162 7.1.1 Analytical model ... 2.1.3 The plastic response of materials - 62 2.2 The stresses in thin films 64 2.2.1 The origins of stresses in thin films ... coefficients of thermal expansion of amorphous (CTE) Cu-Zr thin films It has been proposed that the elastic moduli of metallic glasses correlate with their thermal and mechanical properties, such...
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Effects of AG on structural and magnetic properties of fept thin films
... structural properties of FePt-Ag thin films, the first step is to fabricate the materials Characterization of the thin films provided information about structural and magnetic information of FePt-Ag thin ... fitting of AXS data of 450 nm Ag thin film and 450 nm FePt thin films co-sputtered with 20 vol.% and 30 vol.% Ag 69 Figure 4-15 Fourier transfer of the Fe K edge EXAFS spectra of Fe foil ... components for the FePt-Ag thin films on MgO substrate 76 Figure 5-1 Structure illustration of the FePt/Ag/FePt thin films 82 Figure 5-2 XRD scans of FePt films with various inserted...
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SPUTTER DEPOSITION OF ZNO THIN FILMS
... Ambient on the Properties of ZnO: Al 81 3.6.2 Development of Properties in Very Thin ZnO: Al Films 83 3.6.3 Negative Ion Resputtering in Sputter Deposition of ZnO: Al Films 84 AFFECT OF ANNEALING ... 166 6-6 Resistivity of ZnO: Al thin films 167 6-7 Resistivity of ZnO: Al thin films with 500 W data offset by 3.2 cm 167 6-8 Resistivity of the deposited ZnO: Al thin film plotted versus ... 6-9(a-b) Carrier concentration of ZnO: Al thin films 171 6-10(a-b) Hall mobility of ZnO: Al thin films 174 6-11(a-b) SIMS depth profile data for ZnO: Al films deposited at 250 W ...
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Effects of carbon on optical properties of zno powder
... spectra of C-doped ZnO exhibit characteristic peaks of graphitic material N Tu et al / Journal of Luminescence 174 (2016) 6–10 Fig Photoluminescence spectra of ZnO source material and ZnO: 4%C ... source ZnO The Raman mode at 1594 cm À is a characteristic of graphitic Fig FTIR spectra of ZnO source material and ZnO: C (2, 3, and 4%C) annealed at 800 °C The peak corresponding to ZnO bond ... XRD patterns of ZnO source material and ZnO: 4% C at different annealing temperatures (a), ZnO: C (2, 3, 4%) at the same annealing temperature of 800 °C The inset shows XRD patterns of the three...
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DSpace at VNU: Optoelectronic properties of graphene thin films prepared by thermal reduction of graphene oxide
... the PL of graphene thin film, which is an important property for application in optoelectronic devices Fig 2(b) represents the PL spectra of graphene thin films prepared by thermal reduction of GO ... 765–767 767 Fig Current–voltage curves of graphene thin films prepared by thermal reduction of GO sheet resistances of our graphene films prepared by thermal reduction of GO at 600 °C, 700 °C and 800 ... tune the band gap of graphene I–V curves of graphene thin films prepared by thermal reduction of GO at different reduction temperatures are depicted in Fig The In summary, GO thin film was thermally...
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DSpace at VNU: Tuning Magnetic Properties of BiFeO3 Thin Films by Controlling Rare-Earth Doping: Experimental and First-Principles Studies
... values of x in Bi1-xRExFeO3 and/or decreasing ionic radii of the rare earth cation [8, 9, 17–18] Recent studies of bulk and thin films of (Bi,RE) FeO3 (RE = Nd, Sm) have revealed a formation of a ... doped BiFeO3 thin films have reported that all the films of 10% of RE doping show a single phase of rhombohedral structure The saturated magnetization in Ho-, Sm-, and Eu-doped films is much ... identification of suitable material design rules of magnetic, ferroelectric and magnetoelectric properties of multiferroics, due to its ability to describe the many active degrees of freedom within a...
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Báo cáo hóa học: " Effect of Composition on Electrical and Optical Properties of Thin Films of Amorphous GaxSe1002x Nanorods" pptx
... study of the electrical and optical properties of this compound in thin film formation Since the optimization of device performance requires a well-established knowledge of the electrical and optical ... knowledge of the electrical and optical properties of GaSe thin films, in this paper, we report the results on electrical and optical measurements of amorphous thin films of GaSe nanorods prepared by vacuum ... diameter of the nanorods varies from 140 to 180 nm, and the length is of several hundreds of nanometers Figure presents the temperature dependence of the dc conductivity of thin films of a- GaxSe100-x...
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báo cáo hóa học:" Structural and optical properties of a radio frequency magnetron-sputtered ZnO thin film with different growth angles" pdf
... of electrodeposited ZnO thin films Thin Solid Films 2008, 516:3893-3898 Bragg WL, Bragg WH: The Crystalline State New York: McMillan; 1933 15 30 o Growth angle ( ) Figure Reflectance of ZnO films ... structured ZnO films The ZnO films were deposited on glass substrates inside a specially designed RF magnetron sputtering system We studied the growth angle effect of the films for optical properties ... thickness of the ZnO thin films was checked by FE-SEM and was fixed at 100 nm Three growth angles (0°, 15°, and 30°) of the columnar ZnO films were carefully selected The intensities of the main...
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Báo cáo hóa học: "Surface Morphological and Nanomechanical Properties of PLD-Derived ZnO Thin Films" docx
... roughness and evaluated mechanical properties of ZnO thin films and bulk materials (S.-R Jian* et al.) ZnO fiilm/sapphire ZnO film/c-sapphire ZnO films/(0001) 6H-SiC ZnO films ZnO (bulk) 4.1 nm* Ra 2.3 nm* ... effects of substrates on mechanical properties of thin films/substrates systems Experimental Details The Growth Conditions of ZnO Thin Films ZnO thin films were grown on (0001) (c-oriented), ð1120Þ ... to the ZnO thin films, in merit of both basic research and technological applications In addition, nanoscratch technique can be used to characterize the nanotribological properties of ZnO thin films...
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DSpace at VNU: STUDY OF MICROSTRUCTURE AND OPTICAL PROPERTIES OF PVA-CAPPED ZnS : Cu NANOCRYSTALLINE THIN FILMS
... polymers of ZnS nanopowder and thin films on the resulted optical properties of those samples In this paper, we present the research results on the role of Cu doping and PVA-capping of ZnS nanoparticles ... PVA-capping of ZnS nanoparticles and thin films We studied firstly the variations of optical properties of the ZnS : Cu nanopowder doped with various Cu concentrations of 0.1%, 0.15%, 0.2%, 0.3% and ... were embedded Fig TEM image of F-ZnS : Cu-PVA2 thin film August 7, S021886351000525X 2010 9:5 WSPC/S0218-8635 145-JNOPM Study of Microstructure and Optical Properties of PVA-Capped 2.5 Absorption...
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DSpace at VNU: The effect of polyvinylpyrrolidone on the optical properties of the ni-doped ZnS nanocrystalline thin films synthesized by chemical method
... investigating the optical properties of PVP-coated ZnS : Ni nanocomposite materials Thus, in this paper we report the optical properties of PVP (polyvinyl-pyrrolidone) and the influence of PVP concentration ... ratios of 0.0%, 0.2%, 0.3%, 0.6%, and 1% of Ni2+ and Zn2+ 2.2 Preparation of Thin Films and Powders from PVP-Capped ZnS : Ni Nanocrystals In order to study the role and the effect of PVP on the optical ... luminescence of about 520 nm is attributed to the d-d optical transitions of Ni2+ , and the luminescent center of Ni2+ is formed in ZnS In order to observe the influence of PVP concentration on optical properties...
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fabrication and optical properties of ordered sea urchin-like zno
... well-crystallized particles of prepared ZnO Fig 1b shows the UV–visible optical absorption characteristics of the sea urchin-like ZnO Excitonic absorption peak of the ZnO sample is at about 360 ... results of Fig 2d For analyzing the photoelectric properties of the sea urchin-like ZnO nanostructures, simple battery devices were fabricated Fig shows the I–V curve of the sea urchin-like ZnO nanostructures ... UV–visible optical absorption characteristics (b) of the sea urchin-like ZnO nanostructures Fig SEM images (a,b), TEM image (c), HRTEM image (d) and SAED pattern (e) of the sea urchin-like ZnO nanostructures...
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