Premium
Replacing Alkoxy Groups with Alkylthienyl Groups: A Feasible Approach To Improve the Properties of Photovoltaic Polymers
Author(s) -
Huo Lijun,
Zhang Shaoqing,
Guo Xia,
Xu Feng,
Li Yongfang,
Hou Jianhui
Publication year - 2011
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/anie.201103313
Subject(s) - photovoltaic system , alkoxy group , conjugated system , dimension (graph theory) , polymer , materials science , computer science , chemistry , organic chemistry , mathematics , combinatorics , engineering , electrical engineering , composite material , alkyl
Another dimension : Two newly designed two‐dimensional (2D) conjugated polymers, PBDTTT‐E‐T (see scheme; left) and PBDTTT‐C‐T, were prepared and their properties compared to those of the alkoxy‐substituted analogues (right). PBDTTT‐E‐T and PBDTTT‐C‐T exhibited smaller band gaps, lower‐energy HOMO levels, better thermal stabilities, and much better photovoltaic properties. Therefore, the 2D structures are feasible for the design of photovoltaic polymers.