title: An easy and effective method to modulate molecular energy level of the polymer based on benzodithiophene for the application in polymer solar cells.
abstract: Attaching meta-alkoxy-phenyl groups as conjugated side chains is an easy and effective way to modulate the molecular energy level of D-A polymer for photovoltaic application, and the polymer solar cells based on the polymer consisting meta-alkoxy-phenyl groups as conjugated side chain, PBT-OP, shows an enhanced open circuit voltage and thus higher efficiency of 7.50%, under the illumination of AM 1.5G, 100 mW/cm(2) .
authors.affiliation: State Key Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.
authors.forename: Maojie
authors.initials: M
authors.lastname: Zhang
authors.forename: Xia
authors.initials: X
authors.lastname: Guo
authors.forename: Wei
authors.initials: W
authors.lastname: Ma
authors.forename: Shaoqing
authors.initials: S
authors.lastname: Zhang
authors.forename: Lijun
authors.initials: L
authors.lastname: Huo
authors.forename: Harald
authors.initials: H
authors.lastname: Ade
authors.forename: Jianhui
authors.initials: J
authors.lastname: Hou
keywords: efficiency; molecular energy level; polymer; polymer solar cell