Premium
Twisted but Conjugated: Building Blocks for Low Bandgap Polymers
Author(s) -
Chiu ChienYang,
Wang Hengbin,
Brunetti Fulvio G.,
Wudl Fred,
Hawker Craig J.
Publication year - 2014
Publication title -
angewandte chemie
Language(s) - English
Resource type - Journals
eISSN - 1521-3757
pISSN - 0044-8249
DOI - 10.1002/ange.201400674
Subject(s) - conjugated system , copolymer , band gap , monomer , materials science , planar , polymer , solubility , block (permutation group theory) , optoelectronics , absorption (acoustics) , infrared , chemical physics , chemistry , optics , organic chemistry , physics , computer science , composite material , computer graphics (images) , geometry , mathematics
Here we report a novel twisted monomer based on a distorted CC double bond for low bandgap conjugated copolymers. This new building block provides several unique characteristics when compared to classical planar systems such as high solubility, electron accepting ability, and isomeric tunability. The resulting copolymers exhibit broad absorption spanning both visible and near‐infrared regions leading to promising solar cell performance.