High efficiency flexible dye-sensitized solar cells by multiple electrophoretic depositions

被引：70

作者：

Chiu, Wei-Hao ^{[1
]}

Lee, Kun-Mu ^{[3
]}

Hsieh, Wen-Feng ^{[1
,2
]}

机构：

[1] Natl Chiao Tung Univ, Inst Electroopt Engn, Dept Photon, Hsinchu 30050, Taiwan

[2] Natl Cheng Kung Univ, Inst Electroopt Sci & Engn, Tainan 70101, Taiwan

[3] Ind Technol Res Inst, Green Energy & Environm Res Labs, Hsinchu 310, Taiwan

来源：

JOURNAL OF POWER SOURCES | 2011年 / 196卷 / 07期

关键词：

Electrophoretic deposition (EPD); Titanium dioxide (TiO2); Dye-sensitized solar cells (DSCs); Low-temperature fabrication; Photovoltaics; LOW-TEMPERATURE FABRICATION; ELECTRODES; TITANIA; PERFORMANCE; PHOTOANODE; SUBSTRATE; LAYERS; FILMS;

D O I：

10.1016/j.jpowsour.2010.12.063

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A multiple electrophoretic deposition (EPD) of binder-free TiO2 photoanode has been developed to successfully fill the crack occurring after air-drying on the first EPD-TiO2 film surface. With the slow 2nd EPD, high quality TiO2 thin films are acquired on flexible ITO/PEN substrates at room temperature and the device efficiency of the dye-sensitized solar cell achieved 5.54% with a high fill factor of 0.721. Electrochemical impedance spectroscopy measurements analyze the great enhancement of the photovoltaic performance through multiple EPD. The electron diffusion coefficient improved by about 1 order of magnitude in crack-less multiple-EPD TiO2 films. With the scattering layer, the device reveals a high conversion efficiency of up to 6.63% under AM 1.5 G one sun irradiation, having a short circuit current density, open circuit voltage, and filling factor of 12.06 mA cm(-2), 0.763 V and 0.72, respectively. Crown Copyright (C) 2010 Published by Elsevier B.V. All rights reserved.

引用

页码：3683 / 3687

页数：5

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