A dopant-free polymer as hole-transporting material for highly efficient and stable perovskite solar cells

Xianqiang Li, Xiaohong Tang, Yijie Yang, Tao Ye, Dan Wu, Hong Wang, Jun Li, Xizu Wang

Research output: Contribution to journalArticlepeer-review

7 Scopus citations

Abstract

A series of thiazolothiazole-thiophene-based polymer hole-transporting materials (HTMs) are synthesized and applied into perovskite solar cells (PSCs). These polymer HTMs have good performance and stability without any dopants. The improved performance and stability of PSCs is attributed to the polymer HTMs' crystallinity which can be controlled by adjusting the thiophene units on the polymer backbone. The highest PCE of the polymer HTMs based PSCs reached 14.02%. The stability of the PSCs was shown by retaining 80% PCE of the original value after stored them in a N2-filled glovebox for 113 days.

Original languageEnglish
Pages (from-to)994-1002
Number of pages9
JournalProgress in Photovoltaics: Research and Applications
Volume26
Issue number12
DOIs
StatePublished - Dec 2018
Externally publishedYes

Keywords

  • crystallinity
  • hole-transporting material
  • perovskite solar cell
  • stability

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