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Arylamine polymers prepared via facile paraldehyde addition condensation: an effective hole‐transporting material for perovskite solar cells
Author(s) -
Suwa Koki,
Tanaka Suguru,
Oyaizu Kenichi,
Nishide Hiroyuki
Publication year - 2018
Publication title -
polymer international
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.592
H-Index - 105
eISSN - 1097-0126
pISSN - 0959-8103
DOI - 10.1002/pi.5545
Subject(s) - polymer , perovskite (structure) , materials science , amorphous solid , chemical engineering , substrate (aquarium) , conjugated system , glass transition , condensation , condensation polymer , polymer chemistry , spin coating , layer (electronics) , homo/lumo , thin film , organic chemistry , nanotechnology , molecule , chemistry , composite material , oceanography , physics , engineering , thermodynamics , geology
Arylamine polymers were prepared via the facile one‐step addition condensation of N , N ′‐diphenyl‐ N , N ′‐bis(4‐methylphenyl)‐1,4‐phenylenediamine and 4‐methoxytriphenylamine with paraldehyde. The polymers were highly soluble in common organic solvents. The non‐conjugated arylamine polymer structure was characterized and found to form tough, homogeneous, amorphous layers with a glass transition temperature above 200 °C on a substrate by a simple spin‐coating process. The polymer layers exhibited a hole mobility of the order of 10 −5 cm 2 V −1 s −1 , which was comparable with those of previously reported arylamine polymers, and a highest occupied molecular orbital level of −5.38 eV appropriate for the hole‐transporting layer of perovskite solar cells. The perovskite cells fabricated with the polymers gave a photovoltaic conversion efficiency of 16.0%. © 2018 Society of Chemical Industry