deposition of pet thin films 24

... Electrospray deposition of polymer thin films for organic light-emitting diodes Wontae Hwang1, Guoqing Xin1, Minjun Cho1, Sung Min Cho1, and Heeyeop Chae*2 School of Chemical Engineering, ... applicability of the electrospray process to organic thin films in OLEDs was demonstrated in small-scale devices [12] In this work, we demonstrated nanoscale-thick organic thin films using the ... Hachioji, Tokyo, Japan), and a wavelength of 335 nm was used for analysis of PL excitation The thickness and roughness of PVK films were determined by a surface profiler (Alpha-Step, KLA-Tencor Corporation,...

Ngày tải lên: 20/06/2014, 23:20

... 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 thickness 169 6-9(a-b) Carrier concentration of ZnO:Al thin films ... micrographs 196 6-22(a-b) “Grain size” of the ZnO:Al thin films 198 6-23(a-b) RMS roughness of the ZnO:Al thin films 200 6 -24 Resistivity of the ZnO:Al thin film 213 6-25(a-b) ... Affect of Annealing 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...

Ngày tải lên: 21/12/2016, 11:00

... VNU Journal of Science, Mathematics - Physics 24 (2008) 119-123 (a) (b) Fig SEM images of CdS thin films prepared in the bath with ml of 1M CdSO4 solution for 9h (a) and with 25 ml of 1M CdSO4 ... spectroscopy The typical Raman spectrum of the as-prepared CdS thin films is displayed in Fig The related researches [6] show that Raman spectra of CdS thin films strongly depends on the film grain ... spectra of thin films growth by the spray pyrolysis technique consist of a characteristic red band centered at about 698 nm The apparition of this red band may be assigned to the excess of Cd2+...

Ngày tải lên: 14/03/2014, 13:20

... 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 ... measure the magnetic properties of the samples Pulsed Laser Deposition Technique Pulsed laser deposition (PLD) has clearly emerged as one of the premier thin film deposition techniques for multi-elemental ... 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...

Ngày tải lên: 08/09/2015, 15:20

... orientations of MgO films 47 3.3.4 The influence of target-substrate distance on film quality 50 3.4 Conclusions 52 3.5 References 54 High perpendicular coercive field of (100)-oriented CoFe2O4 thin films ... loop of the BBFO films at room temperature 84 Figure 5.5 The magnetic hystersis loop of the BBFO films at room temperature 86 Figure 5.6 The dielectric constant of the BBFO films as a function of ... the fabrication procedure of highly (100)-oriented CoFe2O4 films on silicon with the help of MgO buffer layer; Magnetic properties and relative mechanism of these CoFe2O4 films were investigated...

Ngày tải lên: 07/10/2015, 10:10

... 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 chemical bath ... Crystalline ZnS thin films by chemical bath deposition method and its characterization Thin Solid Films 2006, 515:1912-1917 Takata S, Minami T, Miyata T, Nanto H: Growth of hexagonal ZnS thin fims ... thin films grown by atomic layer deposition for electroluminescent applications Appl Surf Sci 2004, 229:105-111 12 Zhang R, Wang B, Wei L: Influence of RF power on the structure of ZnS thin films...

Ngày tải lên: 20/06/2014, 21:20

... peaks correspond to the carbon coated copper grid of TEM No peaks of other impurity have been detected Therefore, the EDX profile of sample (inset of Figure 2) indicates that the silver nanoparticles ... http://www.nanoscalereslett.com/content/6/1/434 Page of Figure Resistivity as function of temperature for thin film of silver nanoparticles Inset shows the plot of ln r vs T-1/4 where kB is the Boltzmann ... Eilers H: From silver nanoparticles to thin films: Evolution of microstructure and electrical conductionon glass substrates Journal of Physics and Chemistry of Solids 2009, 70:459 18 Talley CE,...

Ngày tải lên: 21/06/2014, 02:20

... pre-treatment and deposition of protective coating 44 4.2.1 Application of FCVA technique for bombardment of the surface of the samples with energetic C+ ions and deposition of ta-C thin film ... Binding energies (BE) of characteristic Gaussian profiles and corresponding atomic percentages in XPS spectra of ta-C films 73 Table 6-1 Deposition conditions of ta-C films 84 Table ... spectra of the top surface of the Co-Si/C sample (take off angle of 5°) 159 Figure 10-4 XPS Co2p/3 spectrum of the Co/Si mixed layer (interface of Co film and Si/C layer) at take off...

Ngày tải lên: 09/09/2015, 10:17

... Hydrothermal deposition 37 2.2 Preparation of Samples Used for Anodic Anodization 38 2.2.1 Film deposition by magnetron sputtering 38 2.2.2 Anodization of W/Ti thin films in organic ... doped WO3 thin films show two layer structures consisting of nanopillars on top of a compact layer with uniform Ti/W atomic ratio of 4:1 In the present work, on the one hand, this thin film presents ... 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,...

Ngày tải lên: 09/09/2015, 11:16

... potential of BTS thin films The efforts toward improving the tunable and pyroelectric properties of BTS thin films have demonstrated the appealing prospective applications of BTS thin films in ... LIST OF TABLES Table 2.1 Competing technologies for tunable circuits…………………… ….…26 Table 3.1 Deposition conditions for BTS thin films ……………………………39 Table 3.2 Properties of the BTS thin films ... dependence of P and FD of the BTS thin films at different applied electric fields (at 20 oC)……………………………………… 61 Table 5.1 Dielectric properties of BTS thin films buffered with BZN of different...

Ngày tải lên: 10/09/2015, 15:48

... 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 ... analysis, respectively, of the density changes in Cu-Zr and Zr-Cu-Al systems The measurement of Young’s moduli and coefficients of thermal expansion of amorphous Cu-Zr thin films will be covered ... The yield stress of a material σTS: The tensile strength of a material E: The Young’s modulus of a material υ: The Poisson’s ratio of a material M: The biaxial modulus of a thin film εm: The...

Ngày tải lên: 11/09/2015, 09:16

... profile of 6FDA- Durene polyimide dense films with different thickness, thus to correlate the aging of hollow fiber containing a thin and dense selective layer with the aging of dense films of ... adjustment of chains is also worthy of consideration 1.5 Why thin films? Besides the property-oriented molecular tailoring, the introduction of the asymmetric membranes, which typically consist of a thin ... correlate the aging of hollow fiber containing a thin and dense selective layer with the aging of dense films of comparable thickness; (ii) the CO2 plasticization behaviors of 6FDA-Durene films with different...

Ngày tải lên: 26/09/2015, 10:13

... 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 films ... illustration of cosputtered FePt-Ag thin films 43 viii List of Figures Figure 3-8 XRD scans of (FePt)1-x-Agx films on CrRu underlayer 44 Figure 3-9 FePt grain size as a function of Ag content ... 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...

Ngày tải lên: 30/09/2015, 06:41

... the shell thickness of a nanowire with diameter of 120 nm to be 10 nm In this paper, we introduce our ab initio investigation on BaTiO3 thin films to study the influence of the surface effect ... contraction of both center and surface unit cells of studied films seems to in contrary with the experimental observation on the anomalous lattice expansion of nanocrystalline BaTiO3 particles of S ... shifts of the core-electron binding energy level (corresponding with the negative shift of the DOS core band) of Nb 3d and T 4f were assigned to the enhancement of the resonance diffraction of the...

Ngày tải lên: 30/10/2015, 19:59

... measurering the thermal expansion coefficient of the pure P3HT and PTC, a solution of 10 mg of P3HT and PTC in chloroform was dropped on the surface of glass grating with density 625 grooves/mm ... of the thermal expansion coefficient of the measured polymers at room temperature Fig.5 Pixel shift of P3HT (a) and time-temperature dependence of heating (b) N.V Thuan et al / VNU Journal of ... is analyzed by computer in real time by mean of a Gaussian profile fitting algorithm (Fig 2), and the pixel-shift was of ∆x = 99 Using Eq with data of D (6614 nm or 6.614×10-3 mm) and (f = 300...

Ngày tải lên: 24/10/2016, 11:18

... 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...

Ngày tải lên: 14/09/2015, 14:12

... Residual Stresses in Ferroelectric Thin Films 34 2.5.1 Generation of Residual Stresses in Thin Films 35 2.5.2 Measurement Techniques of Residual Stresses within Thin Films 36 iii 2.5.2.1 Curvature ... ORIENTATION AXIS OF THIN FILMS GROWN BY PLD 5.1 Background 79 5.2 Distribution in Orientation Axis of the Films Axis 80 5.3 Microstructure of Films 84 5.4 Electrical Properties of PZT Films 86 5.5 ... characteristics of the films were examined The mechanisms of growth of the out -of- plane oriented films grown on amorphous substrates were discussed Distribution of the orientation axes of LNO and PZT films...

Ngày tải lên: 14/09/2015, 18:31

... 4.1 The properties of the PZT films grown by PLD and sol-gel deposition 66 Table 5.1 Summary of PLD processing parameters for the YSZ, YBCO, and LSMO thin films 76 xiii List of Symbols Ps Spontaneous ... the development of ferroelectric memories was the necessity of making them extremely thin films because the coercive voltage is typically of the order of several kV/cm With today’s deposition techniques ... scans of the thin films The films were first mounted onto a glass slide The xray was produced by impinging a copper target with an electron beam of 30 kV with a current of 20 mA An incident slit of...

Ngày tải lên: 16/09/2015, 08:31

... 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 ... The Materials Science of Thin Films I I I The Materials Science of Milton Ohring Stevens Institute of Technology Department of Materials Science and Engineering Hoboken,...

Ngày tải lên: 05/03/2014, 17:20

Ngày tải lên: 14/03/2014, 13:20