Enhancement of ZnO Dye-Sensitized Solar Cell Performance by Modifying Photoelectrode Using Two-Steps Coating-Etching Process
© 2015 The Authors. Published by Elsevier Ltd. ZnO photoelectrodes modified by two-steps coating-etching process with chemical wet etchants for dye-sensitized solar cell were investigated. The ZnO films were coated on a fluorine-doped tin oxide glass substrate and etched by mixed acid solution of HC...
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| Main Authors: | , , , , , |
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| Format: | Conference Proceeding |
| Published: |
2018
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| Subjects: | |
| Online Access: | https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=84970966276&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/44088 |
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| Institution: | Chiang Mai University |
| Summary: | © 2015 The Authors. Published by Elsevier Ltd. ZnO photoelectrodes modified by two-steps coating-etching process with chemical wet etchants for dye-sensitized solar cell were investigated. The ZnO films were coated on a fluorine-doped tin oxide glass substrate and etched by mixed acid solution of HCl:HNO 3 :distilled water, washed, and thermally treated for the first step. The second step, films coating process was repeated and etched by base solution of diluted NH 4 OH in distilled water. Surface morphologies of unmodified and modified ZnO films look similar DSSCs with modified photoelectrodes showed efficiency enhancement with maximum power conversion efficiency of 2.29%. From EIS analysis, it was suggested that the fill factor plays an important role on enhancement of power conversion efficiency. The fill factor increase d due to the formation of pores structure in the photoelectrodes during etching process. |
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