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首页> 外文期刊>Organic Electronics >Novel D-A-π-A carbazole dyes containing benzothiadiazole chromophores for dye-sensitized solar cells
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Novel D-A-π-A carbazole dyes containing benzothiadiazole chromophores for dye-sensitized solar cells

机译:含有苯并噻二唑发色团的新型D-A-π-A咔唑染料,用于染料敏化太阳能电池

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摘要

New D-A-π-A carbazole dyes containing benzothiadiazole chromophores were designed and synthesized for application in dye-sensitized solar cells (DSSCs). The light-harvesting capabilities and photovoltaic performance of these dyes were investigated systematically through comparison of different π-bridges and acceptors. Compared with thiophene bridge, benzene bridge provides improved IPCE and V_(oc), which leads to better photoelectricity conversion efficiency. Dyes with cyanoacetic acid acceptor display superior photovoltaic properties though with shorter absorption maximum and lower molar absorption coefficient compared with dyes with rhodanine acetic acid acceptor. Therefore, dye with benzene bridge and cyanoacetic acid acceptor shows the most efficient photoelectricity conversion efficiency and has the maximum η value of 5.40% (V_(oc)= 710 mV,J_(sc)= 10.99 -mA/cm~2, and ff= 0.71) under simulated AM 1.5 irradiation (100 mW/cm~2).
机译:设计并合成了新的含苯并噻二唑发色团的D-A-π-A咔唑染料,用于染料敏化太阳能电池(DSSC)。通过比较不同的π桥和受体,系统地研究了这些染料的光收集能力和光伏性能。与噻吩桥相比,苯桥提供了更高的IPCE和V_(oc),从而带来了更好的光电转换效率。具有氰基乙酸受体的染料与具有若丹宁乙酸受体的染料相比具有更短的最大吸收和更低的摩尔吸收系数,但显示出优异的光伏性能。因此,带有苯桥和氰基乙酸受体的染料显示出最有效的光电转换效率,最大η值为5.40%(V_(oc)= 710 mV,J_(sc)= 10.99 -mA / cm〜2,ff在模拟的AM 1.5辐射(100 mW / cm〜2)下= 0.71)。

著录项

  • 来源
    《Organic Electronics》 |2014年第7期|1536-1544|共9页
  • 作者单位

    College of Chemical Engineering and Materials Science, Zhejiang University of Technology, Hangzhou 31032, China;

    College of Chemical Engineering and Materials Science, Zhejiang University of Technology, Hangzhou 31032, China;

    College of Chemical Engineering and Materials Science, Zhejiang University of Technology, Hangzhou 31032, China;

    College of Chemical Engineering and Materials Science, Zhejiang University of Technology, Hangzhou 31032, China;

    College of Chemical Engineering and Materials Science, Zhejiang University of Technology, Hangzhou 31032, China;

    College of Chemical Engineering and Materials Science, Zhejiang University of Technology, Hangzhou 31032, China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Carbazole; Sensitizing dyes; Solar cell; Benzothiadiazole; Synthesis; Benzene bridge;

    机译:咔唑增感染料;太阳能电池;苯并噻二唑;合成;苯桥;

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