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A Self‐Assembled Small‐Molecule‐Based Hole‐Transporting Material for Inverted Perovskite Solar Cells
Author(s) -
MásMontoya Miriam,
Gómez Paula,
Curiel David,
Silva Ivan,
Wang Junke,
Janssen René A. J.
Publication year - 2020
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.202000005
Subject(s) - perovskite (structure) , materials science , electroluminescence , photovoltaics , photovoltaic system , photoactive layer , nanotechnology , layer (electronics) , small molecule , photoluminescence , molecule , optoelectronics , energy conversion efficiency , chemical engineering , polymer solar cell , chemistry , organic chemistry , ecology , biochemistry , biology , engineering
Hybrid organic–inorganic perovskite solar cells have recently emerged as one of the most promising low‐cost photovoltaic technologies. The remarkable progress of perovskite photovoltaics is closely related to advances in interfacial engineering and development of charge selective interlayers. Herein, we present the synthesis and characterization of a fused azapolyheteroaromatic small molecule, namely anthradi‐7‐azaindole ( ADAI ), with outstanding performance as a hole‐transporting layer in perovskite solar cells with inverted architecture. Its molecular arrangement, induced by hydrogen‐bond‐directed self‐assembly, favors a suitable morphology of the perovskite layer, reducing the effects of recombination as revealed by light intensity dependence, photoluminescence, and electroluminescence studies.