MERAL Myanmar Education Research and Learning Portal
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Fabrication of Tco-Less Dye-Sensitized Solar Cells
http://hdl.handle.net/20.500.12678/0000005248
http://hdl.handle.net/20.500.12678/000000524802936588-5c91-4aac-ab88-692daee91ed9
eed933ec-9de1-4e0f-b5f1-fcc57804323b
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FABRICATION OF TCO-LESS.pdf (3.5 Mb)
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Publication type | ||||||
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Dissertation | ||||||
Upload type | ||||||
Publication | ||||||
Title | ||||||
Title | Fabrication of Tco-Less Dye-Sensitized Solar Cells | |||||
Language | en | |||||
Publication date | 2014-05-06 | |||||
Authors | ||||||
Ohnmar Soe | ||||||
Description | ||||||
The technology of the dye-sensitized solar cells (DSSCs) was studied theoretically. It was found that using two transparent conductive oxide layer (TCO) in both electrodes of DSSCs takes more costs. The nanoporous fluorine doped tin oxide, F: SnO2 powder has been prepared for the fabrication of low cost DSSCs. In this research, all DSSCs have been fabricated without commercial TCO glasses. The carbon enrich counter electrodes have been used for donation and acceptance of electrons for oxidized dye molecules and reduced electrolyte ions. To enhance the current collection, FTO electrodes have been made and applied in DSSCs‘ fabrication. X-ray diffraction analysis confirmed the prepared (F: SnO2) nanocrystallite powder has single phase of tetragonal rutile structure. Scanning electron microscopy (SEM) shows porous structure of (F: SnO2) powder for dye adsorption. The sol–gel combustion method offers a simple and effective route for the synthesis of nanoporous F:SnO2 materials. The working electrodes of DSSCs have been prepared by fluorine doped tin oxide powder. The various counter electrodes have been used to study the working principles and to measure current-voltage characteristic of TCO-less DSSCs. The fill factor (FF) and efficiency (η) of these cells have also been calculated from I-V characteristic curve of fabricated DSSCs. F :SnO2 based TCO-less DSSCs sample without metal mesh has η of about 0.03% with FF of 0.44, open circuit voltage (Voc) of 0.56 V and short circuit current (Isc) of 0.11 mA and that of with metal mesh has η of 0.1092% ,FF of 0.48, Voc of 0.56 V and Isc of 0.38 mA. |
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Thesis/dissertations | ||||||
University of Yangon | ||||||
Pho Kaung |