Cost-effective dopant-free star-shaped oligo-aryl amines for high performance perovskite solar cells?
Journal of Materials Chemistry A Pub Date: 2019-05-18 DOI: 10.1039/C9TA01278H
Abstract
Cost effective imidazole-based star-shaped oligo(arylamines) were easily prepared in good yields via the reaction of one precursor containing two or more aldehydes with a dione compound having two arylamines. High performance perovskite (MAPbI3) solar cells with a conventional cell configuration were fabricated using these compounds as dopant-free hole transport materials. The best solar-to-electricity conversion efficiency reached ～17.5%, which surpassed that based on LiTFSI/t-BP doped spiro-OMeTAD. The cell also exhibited much better temporal stability than the standard cell of LiTFSI/t-BP doped spiro-OMeTAD, as no hydrophilic dopants are needed.
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Journal Name：Journal of Materials Chemistry A
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CAS no.: 89640-58-4
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