title: A nonfullerene acceptor for wide band gap polymer based organic solar cells.
abstract: A new 1,8-naphthalimide based planar small molecular acceptor and two benzothiadiazole based wide band gap (WBG) polymer donors P1 and P2 were synthesized for nonfullerene organic photovoltaic cells (OPVs). Devices based on fluorinated polymer P2 achieved a highly improved PCE of 3.71% with an open circuit voltage (V(oc)) of 1.07 V, which is beyond the currently known levels for nonfullerene OPVs with the V(oc) higher than 1 V.
authors.affiliation: Beijing Key Laboratory of Energy Conversion and Storage Materials, College of Chemistry, Beijing Normal University, Beijing 100875, China. liwenhua@bnu.edu.cn zsbo@bnu.edu.cn.
authors.forename: Jicheng
authors.initials: J
authors.lastname: Zhang
authors.forename: Xuejuan
authors.initials: X
authors.lastname: Zhang
authors.forename: Guangwu
authors.initials: G
authors.lastname: Li
authors.forename: Hongmei
authors.initials: H
authors.lastname: Xiao
authors.forename: Wenhua
authors.initials: W
authors.lastname: Li
authors.forename: Sufei
authors.initials: S
authors.lastname: Xie
authors.forename: Cuihong
authors.initials: C
authors.lastname: Li
authors.forename: Zhishan
authors.initials: Z
authors.lastname: Bo