標題: | The influence of tetrapod-like ZnO morphology and electrolytes on energy conversion efficiency of dye-sensitized solar cells |
作者: | Lee, Chia-Hua Chiu, Wei-Hao Lee, Kun-Mu Yen, Wen-Hsiang Lin, Hsiu-Fen Hsieh, Wen-Feng Wu, Jenn-Ming 光電工程學系 Department of Photonics |
關鍵字: | ZnO;Dye sensitized solar cell;EIS;Dc thermal plasma;Electrolyte additive |
公開日期: | 1-十二月-2010 |
摘要: | Tetrapod-like ZnO nanostructures prepared by dc plasma technology were used as photoelectrodes in dye-sensitized solar cells (DSSCs) Each of the tetrapod-like ZnO possesses four extended arms that offer improved electron transport properties Tetrapod-like ZnO with short (S-ZnO) and long arms (L-ZnO) were synthesized by controlling the plasma gas flow and the input power Between these two tetrapod-like ZnO nanopowders the DSSCs using S-ZnO showed higher energy conversion efficiency than using L-ZnO This is due to the resulting increase in dye adsorption and enhanced short-circuit current density using S-ZnO Electrochemical Impedance spectroscopy (EIS) shows that the properties of electron transport of S-ZnO are superior to that of the L-ZnO We investigated the effect of the redox electrolytes (12) and the additives (Lil and TBP) on the performance of the DSSCs by intensity-modulated photovoltage spectroscopy and EIS (C) 2010 Elsevier Ltd All rights reserved |
URI: | http://dx.doi.org/10.1016/j.electacta.2010.07.061 http://hdl.handle.net/11536/26304 |
ISSN: | 0013-4686 |
DOI: | 10.1016/j.electacta.2010.07.061 |
期刊: | ELECTROCHIMICA ACTA |
Volume: | 55 |
Issue: | 28 |
起始頁: | 8422 |
結束頁: | 8429 |
顯示於類別: | 期刊論文 |