https://scholars.lib.ntu.edu.tw/handle/123456789/363175
標題: | Improving the durability of dye-sensitized solar cells through back illumination | 作者: | Lin, L.-Y. Lee, C.-P. R.vittal Ho, K.-C. KUO-CHUAN HO |
關鍵字: | At-rest stability; Back illumination; Light-to-electricity conversion efficiency; Sputtered platinum layers; Transmission spectra; UV-soaking | 公開日期: | 2011 | 卷: | 196 | 期: | 3 | 起(迄)頁: | 1671-1676 | 來源出版物: | Journal of Power Sources | 摘要: | Highly efficient and stable back illumination dye-sensitized solar cell (BIL-DSSC) is developed using its Pt-counter electrode (Pt-CE) as the light-irradiating surface. Photovoltaic parameters are measured for DSSCs with Pt-CEs obtained with different sputtering periods of platinum layer. By optimizing the transmittance and catalytic property of the platinum layer on the counter electrode, a light-to-electricity conversion efficiency (η) of 7.54% is achieved with back illumination at 100 mW cm-2, when the platinum deposition time is 30 s. The effects of platinum layers with different sputtering periods on the photovoltaic characteristics of the respective DSSCs are explained in terms of transmittance and catalytic activity of the layers. A comparative study is also made on the durability of the DSSCs with BIL and front illumination (FIL), in which the respective DSSCs are previously subjected to UV-soaking for different periods of time under simulated conditions of back and front illuminations; at-rest stability tests for such UV-soaked DSSCs carried out through BIL and FIL suggest a far higher stability in favor of the BIL-DSSC, compared to that of the FIL-DSSC. Explanations are substantiated with transmittance spectra, cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), and absorption spectra. © 2010 Elsevier B.V. All rights reserved. |
URI: | http://www.scopus.com/inward/record.url?eid=2-s2.0-78049378227&partnerID=MN8TOARS http://scholars.lib.ntu.edu.tw/handle/123456789/363175 |
DOI: | 10.1016/j.jpowsour.2010.08.032 | SDG/關鍵字: | At-rest stability; Back illumination; Sputtered platinum layers; Transmission spectra; UV-soaking; Absorption spectroscopy; Catalyst activity; Conversion efficiency; Cyclic voltammetry; Durability; Electric properties; Electrochemical corrosion; Electrochemical impedance spectroscopy; Photoelectrochemical cells; Platinum; Stability; Solar cells |
顯示於: | 化學工程學系 |
在 IR 系統中的文件,除了特別指名其著作權條款之外,均受到著作權保護,並且保留所有的權利。