A star-shaped cyclopentadithiophene-based dopant-free hole-transport material for high-performance perovskite solar cells. Issue 52 (7th June 2021)

• Record Type: Journal Article
• Authors: Lee, Kun-Mu; Yang, Jui-Yu; Lai, Ping-Sheng; Luo, Ke-Jyun; Yang, Ting-Yu; Liau, Kang-Ling; Abate, Seid Yimer; Lin, Yan-Duo
• Is Part Of: Chemical communications. Volume 57:Issue 52(2021)
• Page Start: 6444
• Page End: 6447
• Publication Date: 2021-06-07
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1039/d1cc02396a
• Languages: English
• ISSNs: 1359-7345

Abstract

Abstract : Devices based on star-shaped cyclopentadithiophene, C-CPDT, as a dopant-free HTM exhibit a promising efficiency of 19.68% and excellent long-term stability. 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.