有机化学 ›› 2012, Vol. 32 ›› Issue (07): 1261-1269.DOI: 10.6023/cjoc1112192 上一篇    下一篇

研究论文

N,N-二苯基取代的芳炔化合物的合成及光伏性能

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 E-mail:fjk_003@163.com

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

以简单原料出发, 通过Sonogashira 偶联反应和三甲基硅基(TMS)的保护与脱保护, 合成了一系列N,N-二苯基取代的芳炔化合物SC1 ~ SC5. 这类化合物是以N,N-二苯基为电子给体, 羧基为电子受体, 芳香炔体系为共轭桥的染料. 将化合物SC5 吸附到TiO2 膜上制备成有机染料敏化太阳能电池, 在AM 1.5, 100 mW/cm2 的模拟太阳光下, 电池的光电转换效率(IPCE)值最大达到64%, 而且在350 ~ 580 nm 的范围内都可达到50%以上. 电池的短路电流密度Jsc =8.0 mW/cm2, 开路电压Voc = 0.75 V, 填充因子为FF = 0.70, 总光电转换效率η = 4.2%.

关键词: 染料敏化太阳能电池, 光伏, 有机染料, 芳炔化合物

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