scholarly journals Development of Spray Pyrolysis System for Deposition of Nano-structure Materials

2015 ◽  
Vol 25 (2) ◽  
pp. 133
Author(s):  
Vuong Son ◽  
Nguyen Duc Chien ◽  
Truong Thanh Toan ◽  
Doan Tuan Anh ◽  
Mai Anh Tuan ◽  
...  
Keyword(s):  
Thin Film ◽  
Spray Pyrolysis ◽  
Spray Pyrolysis Technique ◽  
Thin Film Solar Cells ◽  
Dye Sensitized Solar Cell ◽  
X Ray Diffraction ◽  
Nano Structure ◽  
X Ray ◽  
Dye Sensitized ◽  
Scanning Electron

In this paper, we report the development of the spray pyrolysis technique for preparing different nano-structure materials toward the application in thin film solar cells. The spray pyrolysis system can heat up the substrate to 6000C with less than 0.01% full scale. The ramping rate can be set to 100C per minute. The effective coating area can be up to 100 x 100 mm2. Using this technique, the thickness and roughness of the films can be controlled. The obtained morphology, the microstructure of the thin-films, given by scanning electron microscope, X ray diffraction…showed that the system is suitable for deposition of different layers of the dye sensitized solar cell.

Structural and Morphological Studies of Porous ZnO for Dye-Sensitized Solar Cell Applications

2009 ◽  
Vol 293 ◽  
pp. 67-70
Author(s):  
Abdullah Huda ◽  
P.A. Nugroho
Keyword(s):  
Crystal Structure ◽  
Electron Microscope ◽  
Crystal Structure Analysis ◽  
Dye Sensitized Solar Cell ◽  
Random Structure ◽  
X Ray Diffraction ◽  
X Ray ◽  
Dye Sensitized ◽  
Morphological Studies ◽  
Scanning Electron

Porous nanoflake ZnO has been successfully synthesized via a pyrolitic process of chemical bath deposition (CBD). The latter produced nanoflakes of Zn5(CO3)2(OH)6 as an intermediate product, which transformed to ZnO at 300°C. The microstructure has been investigated by surface morphology observation using a scanning electron microscope (SEM) and crystal-structure analysis using X-ray diffraction (XRD). A random structure of 40nm-thick flakes, grown perpendicularly on the substrate, has been obtained.

scholarly journals Karakteristik Pasta TiO2 Suhu Rendah untuk Aplikasi Dye Sensitized Solar Cell (DSSC)

2016 ◽  
Vol 14 (1) ◽  
pp. 24
Author(s):  
Mariya Al Qibtiya ◽  
Lia Muliani ◽  
Jojo Hidayat
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Solar Cell ◽  
Ruthenium Complex ◽  
Dye Sensitized Solar Cell ◽  
X Ray Diffraction ◽  
Scattering Layer ◽  
X Ray ◽  
Dye Sensitized ◽  
Scanning Electron

Pada tulisan ini, diuraikan karakteristik pasta TiO2 suhu rendah untuk aplikasi sel surya berbasis dye-sensitized yang dipreparasi dengan penambahan serbuk TiO2 reflektor. Penambahan TiO2 reflektor sebagai light scattering layer pada pasta dilakukan untuk melihat pengaruhnya terhadap karakteristik listrik sel surya yang dihasilkan. Preparasi pasta dilakukan menggunakan bahan komersial yaitu pasta T-Nanooxide D-L (Solaronix) dan serbuk pasta WER2-O (Dyesiol) sebagai bahan reflector. Bahan tersebut dianalisis struktur kristalnya. Hasil karakterisasi X-Ray Diffraction (XRD) menunjukan bahwa bahan TiO2 serbuk yang digunakan adalah nanokristal dengan struktur kristal anatase. Pasta ini dideposisi di atas permukaan plastik dan kaca konduktif (ITO-PET dan FTO) dengan metode doctor blade printing. Proses sintering lapisan TiO2 dilakukan pada suhu rendah yaitu 120 ˚C selama 4 jam. Morfologi permukaan lapisan TiO2 dianalisa menggunakan Scanning Electron Microscopy (SEM). Lapisan TiO2 yang terbentuk diaplikasikan pada DSSC sebagai fotoelektroda. Pewarnaan dengan larutan N-719 (Ruthenium Complex), lapisan elektroda kerja platina dan larutan elektrolit iodine. Karakteristik kurva I-V dengan ukuran sel daerah aktif 1 cm2 diukur menggunakan Sun Simulator AM1,5 dengan sumber cahaya Xenon dan intensitas 50 mW/cm2. Hasil pengukuran menunjukkan penambahan serbuk TiO2 reflektor dapat meningkatkan unjuk kerja sel surya fleksibel yang dihasilkan. Efisiensi terbaik DSSC yang dihasilkan adalah 0,166% untuk substrat plastik dan 0,167% untuk substrat kaca.

Preparation of TI-Ba-Ca-Cu Superconducting Oxide Films by Spray Pyrolysis Technique

1991 ◽  
Vol 226 ◽  
Author(s):  
H.S. Koo ◽  
T.L. Kuo ◽  
D.H. Kuo ◽  
R.J. Lin ◽  
W.H. Lee ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Spray Pyrolysis ◽  
Room Temperature ◽  
Spray Pyrolysis Technique ◽  
Superconducting Films ◽  
X Ray Diffraction ◽  
X Ray ◽  
Zero Resistance ◽  
Scanning Electron

AbstractSuperconducting TI-Ba-Ca-Cu-O(TBCCO) films with zero resistance temperatures above 100K have been prepared on (001)MgO single-crystal substrates by the combination techniques of spray pyrolysis and Tl-diffusion. The as-sprayed Ba-Ca-Cu-O films and the sintered TBCCO superconducting bulks were wrapped in Au foil and heated in oxygen at temperatures ranging from 890 to 920°C and cooled to room temperature by furnace cooling. Highly c-axis oriented superconducting films were obtained and their average thicknesses were about 5-10 μm. The characteristics of TBCCO films by X-ray diffraction, scanning electron microscopy and electrical property are discussed.

Modification of Working Electrode of Dye-Sensitized Solar Cell Using TiO2 Nanopraticles/TiO2 Nanofibers/CNT Composite

2013 ◽  
Vol 802 ◽  
pp. 32-36
Author(s):  
Wanichaya Mekprasart ◽  
Wirat Jarernboon ◽  
Wicharn Techitdheera
Keyword(s):  
Electron Microscopy ◽  
Solar Cell ◽  
Fill Factor ◽  
Modified Electrodes ◽  
Dye Sensitized Solar Cell ◽  
X Ray Diffraction ◽  
X Ray ◽  
Dye Sensitized ◽  
Working Electrode ◽  
Scanning Electron

The working electrode of dye-sensitized solar cell was modified using composite material of TiO2 particles/TiO2 nanofibers/CNT by doctor blade method. Structural properties of pre-cursor materials and as-prepared working electrodes were well characterized by X-ray diffraction and scanning electron microscopy. The efficiency and relevant parameters of solar cells with modified electrodes were measured. The optimized weight ratios of 1 wt.% TiO2 nanofibers derived from leucoxene and 0.01 wt.% CNT exhibited the highest improvement of DSSC efficiency with solar efficiency of 1.11% and fill factor of 0.32. The increase of current density may be originated from easier electron transfer that occurred in the device with modified TiO2 particles/TiO2 nanofibers/CNT composite.

Rectifying Behavior of Aligned ZnO Nanorods on Mg0.3Zn0.7O Thin Film Template

2011 ◽  
Vol 364 ◽  
pp. 35-39 ◽  
Author(s):  
Salina Muhamad ◽  
Abu Bakar Suriani ◽  
Mohamad Hafiz Mamat ◽  
Rafidah Ahmad ◽  
Mohamad Rusop
Keyword(s):  
Thin Film ◽  
Zno Nanorods ◽  
Thermionic Emission ◽  
Deposition Method ◽  
X Ray Diffraction ◽  
X Ray ◽  
Hexagonal Shape ◽  
Semiconductor Junction ◽  
Vertically Aligned ◽  
Scanning Electron

Rectifying behavior more than 3 orders of aligned zinc oxide (ZnO) nanorods grown on Mg0.3Zn0.7O thin film template using chemical bath deposition method was observed, giving a barrier height of 0.75 eV, and the ideality factor achieved was almost 6, which was analyzed using thermionic emission theory. Field emission scanning electron microscope (FESEM) images revealed that the grown ZnO was in hexagonal shape, uniformly distributed and in vertically aligned form. The crystallinity of the sample being studied using X-ray diffraction (XRD), where the highest peak was found at (002) phase, confirming that high crytallinity of ZnO was attained. The effect of metal/semiconductor junction between metal and aligned ZnO nanorods was discussed in further details.

The Use of BaF2 Buffer Layers for the Sputter-Deposition of Ticabacuo Thin-Film Superconductors

1989 ◽  
Vol 169 ◽  
Author(s):  
K.M. Hubbard ◽  
P.N. Arendt ◽  
D.R. Brown ◽  
D.W. Cooke ◽  
N.E. Elliott ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Sputter Deposition ◽  
Buffer Layers ◽  
X Ray Diffraction ◽  
Dc Magnetron Sputtering ◽  
X Ray ◽  
Film Substrate ◽  
Ion Backscattering ◽  
Scanning Electron

AbstractThin films of the Tl‐based superconductors often have relatively poor properties because of film/substrate interdiffusion which occurs during the anneal. We have therefore investigated the use of BaF2 as a diffusion barrier. TICaBaCuO thin films were deposited by dc magnetron sputtering onto MgO <100> substrates, both with and without an evaporation‐deposited BaF2 buffer layer, and post‐annealed in a Tl over‐pressure. Electrical properties of the films were determined by four‐point probe analysis, and compositions were measured by ion‐backscattering spectroscopy. Structural analysis was performed by X‐ray diffraction and scanning electron microscopy. The BaF2 buffer layers were found to significantly improve the properties of the TICaBaCuO thin films.

Composition and Microstructure of a Natural Nano-Structure Mineral: Six-Ring Rock

2011 ◽  
Vol 295-297 ◽  
pp. 869-872
Author(s):  
Qing Shan Li ◽  
Xin Wang ◽  
Jun Liu ◽  
Guang Zhong Xing
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Energy Dispersive Spectrometer ◽  
The Body ◽  
X Ray Diffraction ◽  
Nano Structure ◽  
X Ray ◽  
Transmission Electron ◽  
Nano Size ◽  
Scanning Electron

Six-ring Rock is widely used as containers of water and additives to produce health care products. In this paper, the composition and microstructure of Six-ring Rock have been investigated by using scanning electron microscopy, energy dispersive spectrometer, transmission electron microscopy, x-ray diffraction and other technologies. Results show that Six-ring Rock is composed of CaMg(CO3)2, SiO2 and KAlSi3O8. Fe atoms exist in CaMg(CO3)2 by replacing Mg atoms. Six-ring Rock shows nano-size lamellar and acerose microstructures on the surface, and nano-size monocrystals in the body. Six-ring Rock is a natural nano structure mineral.

Investigation into the Thin-Film Fabrication of Intermetallic NiTi

1990 ◽  
Vol 187 ◽  
Author(s):  
A. Peter Jardine ◽  
Hong Zhang ◽  
Lysa D. Wasielesky
Keyword(s):  
Thin Film ◽  
Electron Microscopy ◽  
Chemical Separation ◽  
X Ray Diffraction ◽  
X Ray ◽  
Thin Film Fabrication ◽  
Sapphire Substrates ◽  
Crystal Phases ◽  
Film Fabrication ◽  
Scanning Electron

AbstractThin-films of Ni and Ti were formed by sputter co-deposition of Ni and Ti onto amorphous SiO2 and single crystal NaCl and Sapphire substrates. Films were characterized as follows: a) The chemical composition of the films was analysed by EDAX b) The gross morphology was examined by Scanning Electron Microscopy. c) The crystal phases were indentified by X-ray diffraction and Electron diffraction. Intermetallic NiTi has been identified in samples annealed in vacuo at 850°C. Annealing at 500°C in vacuum produced chemical separation of the Ni and Ti. This effect may be due to a narrow solidus region for the existence of NiTi and inhomogeneities due to uneven deposition of the Ni and Ti.

SnO2:F Thin Films with High Fluorine Contents Produced by Spray Pyrolysis at Constant Substrate Temperature

1996 ◽  
Vol 441 ◽  
Author(s):  
D. R. Acosta ◽  
E. Zironi ◽  
W. Estrada ◽  
E. Montoya
Keyword(s):  
Electron Microscopy ◽  
Thin Films ◽  
Spray Pyrolysis ◽  
Tin Oxide ◽  
Spray Pyrolysis Technique ◽  
Structural Parameters ◽  
Final Concentration ◽  
X Ray Diffraction ◽  
Electrical And Optical Properties ◽  
X Ray

AbstractFluorine doped tin oxide thin films were prepared from solutions with high fluorine contents using the spray pyrolysis technique; the resulting films were studied by electron and X-ray diffraction methods; the resonant nuclear reaction (RNR) method was used to determine the final concentration of fluorine atoms in our films for different doping levels. Also, electrical and optical properties of SnO2:F films were measured and correlated with deposition and structural parameters obtained from X-Ray diffraction and electron microscopy studies.

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