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Direct C−H Arylation Meets Perovskite Solar Cells: Tin‐Free Synthesis Shortcut to High‐Performance Hole‐Transporting Materials
Author(s) -
Chang YuChieh,
Lee KunMu,
Lai ChiaHsin,
Liu ChingYuan
Publication year - 2018
Publication title -
chemistry – an asian journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.18
H-Index - 106
eISSN - 1861-471X
pISSN - 1861-4728
DOI - 10.1002/asia.201800454
Subject(s) - triphenylamine , perovskite (structure) , materials science , tin , molecule , small molecule , nanotechnology , optoelectronics , combinatorial chemistry , chemical engineering , chemistry , crystallography , organic chemistry , metallurgy , engineering , biochemistry
In contrast to the traditional multistep synthesis, we demonstrate herein a two‐step synthesis shortcut to triphenylamine‐based hole‐transporting materials (HTMs) through sequential direct C−H arylations. These hole‐transporting molecules are fabricated in perovskite‐based solar cells (PSCs) that exhibit promising efficiencies up to 17.69 %, which is comparable to PSCs utilizing commercially available 2,2′,7,7′‐tetrakis[ N , N ‐di(4‐methoxyphenyl)amino]‐9,9′‐spirobifluorene (spiro‐OMeTAD) as the HTM. This is the first report describing the use of step‐saving C−H activations/arylations in the facile synthesis of small‐molecule HTMs for perovskite solar cells.