A star-shaped cyclopentadithiophene-based dopant-free hole-transport material for high-performance perovskite solar cells

Kun Mu Lee, Jui Yu Yang, Ping Sheng Lai, Ke Jyun Luo, Ting Yu Yang, Kang Ling Liau, Seid Yimer Abate, Yan Duo Lin

Research output: Contribution to journalArticlepeer-review

2 Scopus citations

Abstract

A new cyclopentadithiophene (CPDT)-based organic small molecule serves as an efficient dopant-free hole transport material (HTM) for perovskite solar cells (PSCs). Upon incorporation of two carbazole groups, the resulting CPDT-based HTM (C-CPDT) shows an impressive power conversion efficiency (PCE) of 19.68% with better stability compared with those of spiro-OMeTAD.

Original languageEnglish
Pages (from-to)6444-6447
Number of pages4
JournalChemical Communications
Volume57
Issue number52
DOIs
StatePublished - 4 Jul 2021

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