characteristics of antireflection antistatic thin films
characterizations of porous titania thin films produced by
... starting material for the growth of porous titania Pieces of mm × mm were cut from the foil and one side was coated with gold (100 nm) On the other side a thin layer (10 nm) of Ti–2 wt%Al solid solution ... ) in order to get an idea of the variation in stoichiometry of the oxide matrix along the depth of the films The incident angle variation changes the penetration depth of X-rays which increases ... etching in presence of UV light is more vigorous and can affect the surface of the grains along with the selective dissolution of the grain boundaries In fact, the direction of electrochemical...
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properties and sensor performance of zinc oxide thin films
... influence of processing conditions on the property of ZnO films 113 5.2 The influence of processing conditions on sensor performance 116 5.3 The electrical characteristics of ZnO thin film ... c-axis of ZnO films 66 4.3 XRD parameters and calculated strains of Al doped ZnO films 67 4.4 Average roughness (Ra, nm) of ZnO films on micro arrays by AFM 70 4.5 Atomic ratios of ... materials 38 2.16 Phase diagram of ZnO-Al2O3 system 44 3.1 Deposition rates of sputtered ZnO thin films 51 3.2 (a) Top view of zinc oxide thin film array with four sensing...
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Báo cáo hóa học: " Synthesis and characteristics of NH2-functionalized polymer films to align and immobilize DNA molecules" potx
... Co., LTD 42, Changwon, 642-716, Republic of Korea Department of Chemistry and Institute of Basic Science, Sungkyunkwan University, Suwon, 440-746, Republic of Korea Quantum Optics Lab, Korea Atomic ... For the synthesis of the conductive nanowire, DNA molecules were treated with AN-AuNPs of 60 µL for 30 min; AN-AuNPs of 60 µL were prepared based on the conventional reduction of HAuCl4 using aniline ... Results and discussions The purpose of this work was to confirm the possibility of aligning and immobilizing DNA molecules on the NH2-functionalized polymer thin films formed by the conventional...
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Báo cáo hóa học: " Micro-Raman Mapping of 3C-SiC Thin Films Grown by Solid–Gas Phase Epitaxy on Si (111)" docx
... a tilt of 4° was used Growth of SiC films on Si(111) was achieved using the chemical reaction of monocrystalline silicon and CO gas, supplied at a rate of 1–10 ncm3/min and a pressure of 0.1–10 ... maximum (FWHM) of the SiC-TO mode as a function of mapping distance The linewidth of the TO peak significantly increases at the cavities (by *3 cm-1), a result of the contribution of differently ... symmetrical widening of all the TO peaks We conclude that the observed asymmetry of the TO peak is due to the presence of a 6H-SiC Nanoscale Res Lett (2010) 5:1507–1511 b from a void out of void 250 200...
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báo cáo hóa học:" Growth behavior of titanium dioxide thin films at different precursor temperatures" pptx
... discussion The structures of TiO2 thin films were characterized by XRD using Cu Kα radiation at 30 kV and 40 mA Figure shows the XRD patterns of the TiO2 thin films as a function of the precursor temperature ... roughness This means that a change of the precursor temperature does not influence the surface roughness of TiO2 thin films FT-IR spectra of the TiO2 thin films in Figure show that peaks corresponding ... amorphous phase of the TiO2 thin films on the glass substrate at 400°C exists up to the precursor temperature of 60°C The anatase phase appears at a precursor temperature of 75°C The influence of the...
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Growth and characterization of nickel oxide thin films and nanostructures for novel device applications
... Organization of Thesis Chapter 2.1 Literature Review Growth of NiO Thin Film 2.1.1 Physical deposition of NiO thin film 2.1.2 Solution growth of NiO thin film ... for future work Chapter Literature Review 2.1 Growth of NiO Thin Film 2.1.1 Physical deposition of NiO thin film Physical deposition of the NiO thin film can be achieved by sputtering [3], pulsed ... formation of a strong metal filament with Al as the anode (a) The oxidation of the Al electrode and the drift of Al ions under bias (b) The formation of a metal filament from the reduction of both...
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The effects of additional nonmagnetic layers on structure and magnetic properties of l10 fept thin films
... care, and support I Table of contents ACKNOWLEDGEMENTS I TABLE OF CONTENTS VII SUMMARY VII LIST OF PUBLICATIONS IX LIST OF TABLES X LIST OF FIGURES XI LIST OF SYMBOLS XV LIST OF ABBREVIATIONS XVII ... and out -of- plane coercivities for FePt thin films deposited at 400 °C with different thicknesses Figure 4-2 In-plane and out -of- plane hysteresis loops for FePt thin films with thickness of 15 nm ... Figure 5-9 (a) XRD patterns of FePt thin films of Sample E, F, G, H, and I (b) the enlarged view of in-plane XRD patterns of Sample G and Sample E at the 2θ range of 20-36 degree Figure 5-10...
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Deposition, microstructure and magnetic anisotropy of cobalt ferrite thin films
... properties of CoFe2O4 .1 1.1.1 Spinel structure of CoFe2O4 1.1.2 Ferrimagnetism of CoFe2O4 1.2 Magnetic anisotropy and coercivity of thin films 1.2.1 Magnetic anisotropy of films ... anisotropy of epitaxial Co-ferrite thin films 68 4.1 Growth of (111)-epitaxial CoFe2O4 films on (0001)-Al2O3 68 4.1.1 Effects of oxygen pressure on composition stoichiometry .68 4.1.2 Effects of ... properties of (CoFe2O4) Co-ferrite materials Section 1.2 introduces magnetic anisotropy of magnetic thin films Section 1.3 shows a brief review of film growth mechanisms and strain formation in thin films...
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Mechanisms of polymer ca2+ interaction and their effects on the characteristics of alginate microspheres and films 3
... water and extent of water uptake of films The hydration index and apparent solubility are important properties of films because they affect the rate of drug diffusion across films (Aslani and ... cross-linking of AK and AI films produced variable trends in tensile properties The tensile strength of AK90/10 films was significantly reduced while that of AK70/30 and AI70/30 films was increased ... cross-linking indicated an exchange of Na+ for Ca2+ With the exception of AG 70/30 films, significant decrease in thickness of composite films containing at least 30 % of copolymer was observed after...
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Mechanisms of polymer ca2+ interaction and their effects on the characteristics of alginate microspheres and films 2
... cross-linked films, the increased availability of Ca2+ was accompanied by higher level of CO2 liberation Hence, formation of films of comparable tensile strength resulted as the positive effect of cross-linking ... alginate films is shown in Table 15 With the exception of CAE 0.35 films, the rest were markedly thinner than the corresponding films before cross-linking Although a smaller amount of CaCO3 was ... of alginate films The tensile properties of the different types of films produced are listed in Table 14 Cross-linked alginate films were significantly stronger than sodium alginate films (p
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Mechanisms of polymer ca2+ interaction and their effects on the characteristics of alginate microspheres and films 1
... alginate films with a higher proportion of M and MG blocks were able to be stretched to a greater extent before breakage (Tables and 9) Cross-linked films of higher G content, such as LH and FL films, ... 82 84 86 Ca 2+ 88 90 92 94 96 content of alginate films (mg) Tensile strength Elastic modulus Figure Influence of Ca2+ content of cross-linked alginate films on tensile strength and elastic modulus ... tensile strength of LH and FL films as well as between MP and NI films, the molecular weight of the alginate polymer was found to have an influence on the tensile properties of the alginate matrix...
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Long range and short range orders, and phase miscibility of cocrpt ti thin films
... distribution of the grains by enhancing the grain isolation of the layers deposited on top of it A thin layer of NiP also improved the magnetic properties The structure and interface of CoCrPt/Ti films ... films fall within the domain of materials science A better basic understanding of magnetic thin films, such as the degree of alloying and phase separation of these films, may provide a future ... effects of the LRO of Ti on the LRO of CoCrPt films were studied as Research Aspect-2 (Fig 1-11) 17 Chapter I Introduction Research Aspect-2: Effects of LRO of Ti underlayer on the LRO of CoCrPt...
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A study of a fe2o3 thin films for the oxygen evolution reaction in water photolysis
... images of α-Fe2O3 thin films prepared by (a) the method of Ryan and (b) the method of Schrebler 55 Fig 3.21 XRD patterns of α-Fe2O3 thin films prepared by the method of Ryan and the method of ... patterns of (a) as-deposited iron thin films, (b) α-Fe2O3 thin films obtained from the as-deposited iron thin films after two hours of calcination in air at 650 oC (c) shows the absence of peaks ... 56 XI List of figures Fig 3.22 XPS spectra of α-Fe2O3 thin films prepared by the method of Ryan and the method of Schrebler .56 Fig 3.23 Mott-Schottky plots of α-Fe2O3 thin films prepared...
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FIRST ORDER PHASE TRANSITION AND MAGNETIC PROPERTIES OF EPITAXIAL FERH THIN FILMS
... Compositional dependence on the phase transition of FeRh thin films 3.2.2 Magnetic properties of Fe100-xRhx thin films Magnetization of FeRh thin films of various compositions were shown in Figure ... multiplied by a factor of √2 of Fe52Rh48 thin films of thicknesses 5nm, 10nm, 20nm, 50nm, 100nm and 200nm 41 Figure 4.4 Magnetic-Thermal hysteresis of Fe52Rh48 thin films of thickness 200nm, 100nm, ... (a) Relative ordering parameter of α’-phase Fe100-xRhx thin films of various compositions from x = 35 to 65, and (b) Lattice parameter-c of Fe100-xRhx thin films of various compositions from x...
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FIRST ORDER PHASE TRANSITION AND MAGNETIC PROPERTIES OF EPITAXIAL FERH THIN FILMS
... Compositional dependence on the phase transition of FeRh thin films 3.2.2 Magnetic properties of Fe100-xRhx thin films Magnetization of FeRh thin films of various compositions were shown in Figure ... multiplied by a factor of √2 of Fe52Rh48 thin films of thicknesses 5nm, 10nm, 20nm, 50nm, 100nm and 200nm 41 Figure 4.4 Magnetic-Thermal hysteresis of Fe52Rh48 thin films of thickness 200nm, 100nm, ... (a) Relative ordering parameter of α’-phase Fe100-xRhx thin films of various compositions from x = 35 to 65, and (b) Lattice parameter-c of Fe100-xRhx thin films of various compositions from x...
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Magnetic properties of co ta thin films and their applications in magnetic tunnel junctions
... of contents 4.6 4.7 Co-Ta Alloy 65 4.6.1: Calibration of Co and Ta 65 4.6.2: Coercivity of Co-Ta Films 66 4.6.3: TEM of Co-Ta Grains 68 4.6.4: MFM Images of Co-Ta Films 69 4.6.5: TEM Images of ... PROPERTIES OF CO-TA THIN FILMS AND THEIR APPLICATIONS IN MAGNETIC TUNNEL JUNCTIONS FONG KIEN HOONG (B Eng (Hons), NUS) A THESIS SUBMITTED FOR THE DEGREE OF MASTER OF ENGINEERING DEPARTMENT OF ELECTRICAL ... 69 4.6.5: TEM Images of Co-Ta Films 71 4.6.6: Crystal Structure of Co-Ta Films 72 4.6.7: Surface Roughness of Co-Ta (15%) 75 4.6.8: Summary of Studies on Co-Ta Films 76 Summary 77 CHAPTER 5:...
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The Materials Science of Thin Films 2010 pptx
... years Thin Films - A Historical Perspective Thin- film technology is simultaneously one of the oldest arts and one of the newest sciences Involvement with thin films dates to the metal ages of antiquity ... 10 Electrical and Magnetic Properties of Thin Films 451 10.1 Introduction to Electrical Properties of Thin Films 451 Conduction in Metal Films 455 ... connection between thin films and the broader discipline of materials science and engineering A dramatic increase in our understanding of the fundamental nature of materials throughout much of the twentieth...
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