Synthesis and Photovoltaic Properties of Benzothiadiazole Based Cyanine Dyes for Dye-sensitized Solar Cells

Acta Chimica Sinica ›› 2010, Vol. 68 ›› Issue (24): 2551-2558. Previous Articles Next Articles

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基于苯并噻二唑的菁染料敏化剂的合成与光伏性能研究

李晶，武文俊，贺锦香，花建丽*

(华东理工大学结构可控先进功能材料与制备实验室精细化工研究所上海 200237)

投稿日期:2010-06-10 修回日期:2010-07-19 发布日期:2010-08-11
通讯作者: 花建丽 E-mail:jlhua@ecust.edu.cn
基金资助:
宽光谱、高迁移率的有机太阳能电池敏化染料;基于吡咯并吡咯的高效有机薄膜太阳电池的开发和应用研究

Synthesis and Photovoltaic Properties of Benzothiadiazole Based Cyanine Dyes for Dye-sensitized Solar Cells

LI Jing, WU Wen-Jun, HE Jin-Xiang, HUA Jian-Li

(Key Laboratory for Advanced Materials and Institute of Fine Chemicals, East China University of Science and Technology, Shanghai 200237, China)

Received:2010-06-10 Revised:2010-07-19 Published:2010-08-11
Contact: Jianli HUA E-mail:jlhua@ecust.edu.cn

Abstract

Two new triphenylamine-benzothiadiazole based cyanine sensitizers (I and II) have been synthesized via Knoevenagel condensation reaction with benzo[e]indol-2(3H)-ylidene)acetaldehyde derivatives and 5-carboxyl-3-butyl-1,1,2-trimethyl-3H-indolium iodide and characterized by ¹H NMR, ¹³C NMR, HRMS. The absorption spectra, electrochemical and photovoltaic properties were extensively investigated. The maximum monochromatic incident photon-to-current conversion efficiency (IPCE) of I and II are over 57%, but the overall conversion ef?ciency of DSSC based on dye (I and II) are only 2.59% and 3.28% under standard global AM 1.5 solar light condition.

Key words: cyanine, benzothiadiazole, dye-sensitized solar cells, photovoltaic performance

Cite this article

LI Jing, WU Wen-Jun, HE Jin-Xiang, HUA Jian-Li. Synthesis and Photovoltaic Properties of Benzothiadiazole Based Cyanine Dyes for Dye-sensitized Solar Cells[J]. Acta Chimica Sinica, 2010, 68(24): 2551-2558.

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基于苯并噻二唑的菁染料敏化剂的合成与光伏性能研究

Synthesis and Photovoltaic Properties of Benzothiadiazole Based Cyanine Dyes for Dye-sensitized Solar Cells

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