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New organic photosensitizers incorporating carbazole and dimethylarylamine moieties for dye-sensitized solar cells

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  • Liang, Mao
  • Wang, Zhong-Yuan
  • Zhang, Lu
  • Han, Hong-Yu
  • Sun, Zhe
  • Xue, Song

Abstract

Four organic dyes (XS10–13) employing carbazole unit as electron donor and N,N-dimethylarylamine moieties as electron-donating groups were designed and synthesized for nanocrystalline TiO2 dye-sensitized solar cells. The electron-donating groups of dimethylarylamine increase the electron density of donor moiety and enhance the molar extinction coefficient of dyes. For a typical device the maximum IPCE value could reach 86%, with a short-circuit photocurrent density (Jsc) of 9.8mAcm−2, an open-circuit photovoltage (Voc) of 642mV, and fill factor (FF) of 0.63, which corresponds to an overall conversion efficiency (η) of 4.0%. For a comparison, the N719-sensitized TiO2 solar cell showed an efficiency of 6.4%.

Suggested Citation

  • Liang, Mao & Wang, Zhong-Yuan & Zhang, Lu & Han, Hong-Yu & Sun, Zhe & Xue, Song, 2011. "New organic photosensitizers incorporating carbazole and dimethylarylamine moieties for dye-sensitized solar cells," Renewable Energy, Elsevier, vol. 36(10), pages 2711-2716.
    • Handle: RePEc:eee:renene:v:36:y:2011:i:10:p:2711-2716
    DOI: 10.1016/j.renene.2011.03.003
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    References listed on IDEAS

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    1. Wu, Wenjun & Li, Jing & Guo, Fuling & Zhang, Lei & Long, Yitao & Hua, Jianli, 2010. "Photovoltaic performance and long-term stability of quasi-solid-state fluoranthene dyes-sensitized solar cells," Renewable Energy, Elsevier, vol. 35(8), pages 1724-1728.
    2. Erten-Ela, Sule & Turkmen, Gulsah, 2011. "Perylene imide dyes for solid-state dye-sensitized solar cells: Spectroscopy, energy levels and photovoltaic performance," Renewable Energy, Elsevier, vol. 36(6), pages 1821-1825.
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