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Chinese Journal of Organic Chemistry >

2012 , Vol. 32 >Issue 07: 1261 - 1269

DOI: https://doi.org/10.6023/cjoc1112192

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Synthesis of Diphenylamino-Substituted Arylene-Ethynylenes and Photovoltaic Properties

  • Fang Jingkun ,
  • Yu Xian ,
  • Yang Xin ,
  • Li Wenfeng ,
  • An Delie
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  • a. Changsha Research Institute of Mining & Metallurgy Co., Ltd., ChangSha 410082;
    b. College of Chemistry and Chemical Engineering, Hunan University, Changsha 410012

Received date: 2011-09-19

  Revised date: 2012-02-22

  Online published: 2012-03-29

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Abstract

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

Cite this article

Fang Jingkun , Yu Xian , Yang Xin , Li Wenfeng , An Delie . Synthesis of Diphenylamino-Substituted Arylene-Ethynylenes and Photovoltaic Properties[J]. Chinese Journal of Organic Chemistry, 2012 , 32(07) : 1261 -1269 . DOI: 10.6023/cjoc1112192

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