Premium
Self‐Aggregation of Oligomethylene‐Tethered Diketopyrrolopyrrole Dimers
Author(s) -
Lin Xu,
Okazawa Yusuke,
Tani Yuki,
Ouchi Hayato,
Nakayama Kenichi,
Yagai Shiki
Publication year - 2020
Publication title -
asian journal of organic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.846
H-Index - 44
eISSN - 2193-5815
pISSN - 2193-5807
DOI - 10.1002/ajoc.201900734
Subject(s) - chemistry , energy conversion efficiency , mixing (physics) , phase (matter) , chemical engineering , polymer chemistry , photochemistry , organic chemistry , optoelectronics , materials science , physics , quantum mechanics , engineering
Two diketopyrrolopyrrole dimers with different oligomethylene tether length showed distinct aggregation behaviours, leading to a significant difference in the degree of phase separation upon mixing with PC 61 BM. Despite almost same optical properties, their blend films with PC 61 BM exhibited distinct power conversion efficiency in bulk‐heterojunction solar cells as a result of difference in phase separation.