Synthesis and photovoltaic properties of organic sensitizers containing electron-deficient and electron-rich fused thiophene for dye-sensitized solar cells

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• 作者：Xiaobing Cheng ; Mao Liang ; ^{liangmao717@126.com} ; Siyuan Sun ; Yongbo Shi ; Zijian Ma ; Zhe Sun ; Song Xue ; ^{xuesong@ustc.edu.cn}
• 关键词：Dye-sensitized solar cell ; Organic sensitizers ; Electron-deficient fused thiophene
• 刊名：Tetrahedron
• 出版年：2012
• 期刊代码：107_00404020
• 类别：ch
• 出版时间：8 July, 2012
• 卷：68
• 期：27-28
• 页码：5375-5385
• 文件大小：1540 K

摘要

Diverse fused thiophenes with electron-rich and electron-deficient blocks have been synthesized and employed as the 蟺-conjugated spacers of organic dyes for the dye-sensitized solar cells (DSSCs). The effects of these fused thiophenes were investigated by their absorption spectra, electrochemical and photovoltaic properties. For a typical device a maximum power conversion efficiency of 6.11%was obtained under simulated AM 1.5 irradiation (100 mW cm^鈭?): a short-circuit current (J_SC) of 14.47 mA cm^鈭?, an open-circuit voltage (V_OC) of 670 mV, and a fill factor (FF) of 0.63.