Heteroatom substitution-induced asymmetric A–D–A type non-fullerene acceptor for efficient organic solar cells

Chao Li, Jiali Song, Yunhao Cai, Guangchao Han, Wenyu Zheng, Yuanping Yi, Hwa Sook Ryu, Han Young Woo, Yanming Sun

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Research on asymmetric A–D–A structured non-fullerene acceptors has lagged far behind the development of symmetric counterpart. In this contribution, by simply replacing one sulfur atom in indacenodithiophene unit with a selenium atom, an asymmetric building block SePT and a corresponding asymmetric non-fullerene acceptor SePT-IN have been developed. Asymmetric SePT-IN achieved a high efficiency of 10.20% in organic solar cells when blended with PBT1-C, much higher than that of symmetric TPT-IN counterpart (8.91%). Our results demonstrated an effective heteroatom substitution strategy to develop asymmetric A–D–A structured non-fullerene acceptors.

Original languageEnglish
Pages (from-to)144-150
Number of pages7
JournalJournal of Energy Chemistry
DOIs
Publication statusPublished - 2020 Jan 1

Fingerprint

Substitution reactions
Atoms
Selenium
Sulfur
Organic solar cells
9 alpha,11 alpha,15 alpha-trihydroxy-16-phenoxy-17,18,19,20-tetranorprosta-4,5,13-trienoic acid

Keywords

  • Asymmetric non-fullerene acceptors
  • Heteroatom substitution
  • Organic solar cells
  • Power conversion efficiency

ASJC Scopus subject areas

  • Fuel Technology
  • Energy Engineering and Power Technology
  • Energy (miscellaneous)
  • Electrochemistry

Cite this

Heteroatom substitution-induced asymmetric A–D–A type non-fullerene acceptor for efficient organic solar cells. / Li, Chao; Song, Jiali; Cai, Yunhao; Han, Guangchao; Zheng, Wenyu; Yi, Yuanping; Ryu, Hwa Sook; Woo, Han Young; Sun, Yanming.

In: Journal of Energy Chemistry, 01.01.2020, p. 144-150.

Research output: Contribution to journalArticle

Li, Chao ; Song, Jiali ; Cai, Yunhao ; Han, Guangchao ; Zheng, Wenyu ; Yi, Yuanping ; Ryu, Hwa Sook ; Woo, Han Young ; Sun, Yanming. / Heteroatom substitution-induced asymmetric A–D–A type non-fullerene acceptor for efficient organic solar cells. In: Journal of Energy Chemistry. 2020 ; pp. 144-150.
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AU - Li, Chao

AU - Song, Jiali

AU - Cai, Yunhao

AU - Han, Guangchao

AU - Zheng, Wenyu

AU - Yi, Yuanping

AU - Ryu, Hwa Sook

AU - Woo, Han Young

AU - Sun, Yanming

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