Chin. J. Org. Chem. ›› 2012, Vol. 32 ›› Issue (07): 1261-1269.DOI: 10.6023/cjoc1112192 Previous Articles     Next Articles

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方敬坤a, 俞宪b, 杨鑫b, 李文风a, 安德烈b   

  1. a. 长沙矿冶研究院有限责任公司 长沙 410082;
    b. 湖南大学化学化工学院 长沙 410012
  • 收稿日期:2011-09-19 修回日期:2012-02-22 发布日期:2012-03-29
  • 通讯作者: 方敬坤, 安德烈

Synthesis of Diphenylamino-Substituted Arylene-Ethynylenes and Photovoltaic Properties

Fang Jingkuna, Yu Xianb, Yang Xinb, Li Wenfenga, An Delieb   

  1. a. Changsha Research Institute of Mining & Metallurgy Co., Ltd., ChangSha 410082;
    b. College of Chemistry and Chemical Engineering, Hunan University, Changsha 410012
  • Received:2011-09-19 Revised:2012-02-22 Published:2012-03-29

A series of diphenylamino-substituted arylene-ethynylenes SC1 ~ SC5 were synthesized by Sonogashira coupling reaction, protect-deprotect of trimethylsilyl (TMS) group. These compounds are dyes that substituted by diphenylamino group as electron donor, carboxyl as electron acceptor, arylene-ethynylene group as π-conjugated bridge. Target molecular SC5 was applied to nanocrystalline TiO2 dye-sensitized solar cells. For a typical device the maximal monochromatic incident photon- to-current conversion efficiency (IPCE) can reach 64%, in the range of 350 ~ 580 nm, it can reach more than 50%, with a short-circuit photocurrent density (Jsc) 8.0 mA·cm-2, an open-circuit photovotage (Voc) 0.75 V, and fill factor (FF) 0.70, which corresponds to an overall conversion efficiency (η) of 4.2%.

Key words: Dye-sensitized solar cells, Photovoltaic, Organic dye, Arylene-ethynylenes