Research on Chemical Intermediates

, Volume 43, Issue 10, pp 5779–5794 | Cite as

New difluorenylaminocoumarin photosensitizers for dye-sensitized solar cells

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Abstract

Three difluorenylaminocoumarin sensitizers with different π-bridges bearing thiophene ring and cyanoacrylic acid acceptor were synthesized and their photophysical properties and photoelectric conversion efficiency were investigated and compared with counterpart dyes with diphenylaminocoumarin donor. Replacement of benzene with fluorene in the donor unit contributed to superior photovoltaic performance. Among the three π-bridges, the thiophene-phenyl π-bridge improved V OC and J SC, resulting in a DSSC with the best photoelectric conversion efficiency (η = 5.94%, V OC = 670 mV, J SC = 14.53 mA cm−2, and fill factor, FF = 0.61).

Keywords

Triarylamine Coumarin Sensitizers Photoelectric conversion 
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Notes

Acknowledgements

This work was supported by the National Natural Science Foundation of China (21406202).

Supplementary material

11164_2017_2962_MOESM1_ESM.docx (281 kb)
Supplementary material 1 (DOCX 280 kb)

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Copyright information

© Springer Science+Business Media Dordrecht 2017

Authors and Affiliations

  1. 1.College of Chemical EngineeringZhejiang University of TechnologyHangzhouChina
  2. 2.College of Pharmaceutical ScienceZhejiang University of TechnologyHangzhouChina

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