14.2% Efficiency Dye‐Sensitized Solar Cells by Co‐sensitizing Novel Thieno[3,2‐ b ]indole‐Based Organic Dyes with a Promising Porphyrin Sensitizer

A new series of 4-hexyl-4H-thieno indole based organic chromophores is developed by structural engineering of the electron donor group in the D–HxTI–benzothiadiazole-phenyl-acceptor platform with different fluorenyl moieties, such as unsubstituted fluorenyl and hexyloxy, decyloxy and hexyloxy-phenyl substituted fluorenyl moieties

Jung‐Min Ji; Haoran Zhou; Yu Kyung Eom; Chul Hoon Kim; Hwan Kyu Kim

2020

Scholarcy highlights

  • A new series of 4-hexyl-4H-thienoindole based organic chromophores is developed by structural engineering of the electron donor group in the D–HxTI–benzothiadiazole-phenyl-acceptor platform with different fluorenyl moieties, such as unsubstituted fluorenyl and hexyloxy, decyloxy and hexyloxy-phenyl substituted fluorenyl moieties
  • In comparison to a reference dye SGT-137 with a biphenyl-based donor, the effects of the donating ability and bulkiness of the fluorenyl based donor in this D–π–A-structured platform on molecular properties and photovoltaic performance are investigated to establish the structure–property relationship
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