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Hexaazatrinaphthylene Derivatives: Efficient Electron‐Transporting Materials with Tunable Energy Levels for Inverted Perovskite Solar Cells
Author(s) -
Zhao Dongbing,
Zhu Zonglong,
Kuo MingYu,
Chueh ChuChen,
Jen Alex K.Y.
Publication year - 2016
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201604399
Subject(s) - perovskite (structure) , energy conversion efficiency , hysteresis , materials science , electron , molecule , organic solar cell , optoelectronics , chemical engineering , chemistry , polymer , crystallography , physics , organic chemistry , composite material , condensed matter physics , quantum mechanics , engineering
Hexaazatrinaphthylene (HATNA) derivatives have been successfully shown to function as efficient electron‐transporting materials (ETMs) for perovskite solar cells (PVSCs). The cells demonstrate a superior power conversion efficiency (PCE) of 17.6 % with negligible hysteresis. This study provides one of the first nonfullerene small‐molecule‐based ETMs for high‐performance p–i–n PVSCs.