Random copolymerization realized high efficient polymer solar cells with a record fill factor near 80%

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalNot applicablepeer-review

3 Scopus Citations
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Author(s)

  • Qian Xie
  • Xunfan Liao
  • Lie Chen
  • Ming Zhang
  • Ke Gao
  • Bin Huang
  • Haitao Xu
  • Feng Liu
  • Yiwang Chen

Detail(s)

Original languageEnglish
Pages (from-to)228-235
Journal / PublicationNano Energy
Volume61
Early online date24 Apr 2019
Publication statusPublished - Jul 2019

Abstract

In this work, we successfully achieved a record fill factor (FF)of near 80% by using random copolymerization strategy to precisely control the morphology of active layer for polymer solar cells (PSCs). A series of random copolymers were synthesized by random copolymerization of a self-assembly third unit into the multithiophene-based polymer matrix. The random copolymers possess excellent room temperature processing performance due to their relatively weaker self-aggregation properties. More importantly, despite the non-irregular sequence of random copolymers, the planarity of the third unit favored by the S⋅⋅⋅O intramolecular interaction still induced a face-on orientation of the random copolymers and formed a homogeneously fibril-like interpenetrating network structure in the blend films. Ultimately, the random polymer-based device achieved a remarkably high fill factor (FF)near 80% without any treatment, even approaching to the values of the inorganic materials-based solar cells.

Research Area(s)

  • Fill factor, Morphology optimization, Polymer solar cells, Random polymerization, Room-temperature processing

Citation Format(s)

Random copolymerization realized high efficient polymer solar cells with a record fill factor near 80%. / Xie, Qian; Liao, Xunfan; Chen, Lie; Zhang, Ming; Gao, Ke; Huang, Bin; Xu, Haitao; Liu, Feng; Jen, Alex K.-Y.; Chen, Yiwang.

In: Nano Energy, Vol. 61, 07.2019, p. 228-235.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalNot applicablepeer-review