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化学学报
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化学学报 ›› 2011, Vol. 69 ›› Issue (19): 2207-2214. 上一篇    下一篇

研究论文

新型复合及叠层染料敏化太阳电池研究

苗青青，高俊雄，王泽清，高玉荣，马廷丽*   

  1. 大连理工大学化工学院精细化工国家重点实验室
  • 投稿日期:2011-03-14 修回日期:2011-05-21 发布日期:2011-06-09
  • 通讯作者: 苗青青 E-mail:miaoqq1983@yahoo.com.cn
  • 基金资助:

    国家高技术研究发展计划(863)新材料领域资助项目

The New Type of Hybrid and Tandem Dye-sensitized Solar Cells

QING Qing, GAO Jun-Xiong, WANG Ze-Qing, GAO Yu-Rong, MA Ting-Li   

  1. (State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116024)
  • Received:2011-03-14 Revised:2011-05-21 Published:2011-06-09
  • Contact: qing qingmiao E-mail:miaoqq1983@yahoo.com.cn

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1434

被引次数

14

染料敏化太阳电池(DSC, 染敏电池)是一种新型光伏电池. 为了进一步提高染敏电池的光电转化效率, 以提高太阳光利用率、拓宽电池整体吸收为切入点, 主要研究了三种叠层染敏电池及自主开发的一种基于膜转移技术的新型复合染敏电池. 首先对三种叠层染敏电池的性质、不同结构中顶层及底层电池效率的影响因素进行了系统研究. 其次对新型复合染敏电池进行了叠加性质、高效化及VOC机理研究. 研究发现: 新型复合结构有效拓宽了电池的吸收光谱, 其单色光光电转换效率(IPCE)及短路电流密度(JSC)为复合光阳极两部分值的叠加, 最终获得了11.05%的高效率. 并通过电化学阻抗谱(EIS)确定了其获得较高VOC的原因和TiO2/染料/电解质界面的背反应级数相关. 最后, 在相同条件下, 将复合染敏电池与各种叠层染敏电池、染料协同敏化电池进行了对比. 结果表明: 新型复合染敏电池具有最优的光电转化效率.

关键词: 复合, 膜转移, 染料敏化, 太阳电池, 机理, 叠层 叠层

Dye-sensitized solar cell (DSC) is a new type of photovoltaic cell. To further improve the energy conversion efficiency of DSCs, one method is broadening the absorption spectra and improving the utilization ratio of light. In this paper, three types of tandem DSCs and a new type of hybrid DSC prepared by a film-transfer technique were investigated. The superposition character of tandem DSCs and the influencing factors of the efficiencies of the top and bottom cells in different structure were systematically studied. Then, we investigated the superposition character of hybrid DSC and the mechanism on VOC. The results show that the hybrid structure can achieve a panchromatic response. The superposition of IPCE and JSC were confirmed. The high efficiency of 11.05% was achieved. The high VOC of hybrid DSC was correlated to the different degree of back reactions at the TiO2/dye/electrolyte interface. The highest efficiency of hybrid DSC was achieved when compared with tandem DSC and co-sensitized DSC under the same conditions.

Key words: hybrid, film-transfer, dye-sensitized, solar cell, mechanism, tandem

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