title: Synthesis of a 4,8-dialkoxy-benzo[1,2-b:4,5-b']difuran unit and its application in photovoltaic polymer.
abstract: A new building block of benzo[1,2-b:4,5-b']difuran (BDF) was firstly designed and synthesized. The newly designed unit was applied for constructing a new photovoltaic low band gap polymer, PBDFDTBT, which exhibited promising power conversion efficiency of 5.0%.
authors.affiliation: State Key Laboratory of Polymer Physics and Chemistry, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China.
authors.forename: Lijun
authors.initials: L
authors.lastname: Huo
authors.forename: Ye
authors.initials: Y
authors.lastname: Huang
authors.forename: Benhu
authors.initials: B
authors.lastname: Fan
authors.forename: Xia
authors.initials: X
authors.lastname: Guo
authors.forename: Yan
authors.initials: Y
authors.lastname: Jing
authors.forename: Maojie
authors.initials: M
authors.lastname: Zhang
authors.forename: Yongfang
authors.initials: Y
authors.lastname: Li
authors.forename: Jianhui
authors.initials: J
authors.lastname: Hou