2,3-Diphenylthieno[3,4- b]pyrazines as Hole-Transporting Materials for Stable, High-Performance Perovskite Solar Cells

Shakil N. Afraj, Ding Zheng, Arulmozhi Velusamy, Weijun Ke, Shelby Cuthriell, Xiaohua Zhang, Yao Chen, Chenjian Lin, Jen Shyang Ni, Michael R. Wasielewski, Wei Huang, Junsheng Yu, Chun Huang Pan, Richard D. Schaller, Ming Chou Chen, Mercouri G. Kanatzidis, Antonio Facchetti, Tobin J. Marks

研究成果: 雜誌貢獻期刊論文同行評審

8 引文 斯高帕斯(Scopus)

摘要

High-performance and durable perovskite solar cells (PSCs) have advanced rapidly, enabled in part by the development of superior interfacial hole-transporting layers (HTLs). Here, a new series of 2,3-diphenylthieno[3,4-b]pyrazine (DPTP)-based small molecules containing bis- and tetrakis-triphenyl amino donors (1-3) was synthesized from simple, low-cost, and readily available starting materials. The matched energy levels, ideal surface topographies, high hole mobilities of 8.57 × 10-4cm2V-1S-1, and stable chemical structures of DPTP-4D (3) make it an effective hole-transporting material, delivering a PCE of 20.18% with high environmental, thermal, and light-soaking stability when compared to the reference HTL materials, doped Spiro-OMeTAD and PTAA in PSC n-i-p planar devices. Overall, these DPTP-based molecules are promising HTM candidates for the fabrication of stable PSCs.

原文???core.languages.en_GB???
頁(從 - 到)2118-2127
頁數10
期刊ACS Energy Letters
7
發行號6
DOIs
出版狀態已出版 - 10 6月 2022

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