title: High-efficiency all-polymer solar cells based on a pair of crystalline low-bandgap polymers.
abstract: All-polymer solar cells based on a pair of crystalline low-bandgap polymers (NT and N2200) are demonstrated to achieve a high short-circuit current density of 11.5 mA cm-2 and a power conversion efficiency of up to 5.0% under the standard AM1.5G spectrum with one sun intensity. The high performance of these NT:N2200-based cells can be attributed to the low optical bandgaps of the polymers and the reasonably high and balanced electron and hole mobilities of the NT:N2200 blends due to the crystalline nature of the two polymers.
authors.affiliation: Department of Chemistry, Hong Kong University of Science and Technology, Clear Water Bay, KowLoon, Hong Kong, China.
authors.forename: Cheng
authors.initials: C
authors.lastname: Mu
authors.forename: Peng
authors.initials: P
authors.lastname: Liu
authors.forename: Wei
authors.initials: W
authors.lastname: Ma
authors.forename: Kui
authors.initials: K
authors.lastname: Jiang
authors.forename: Jingbo
authors.initials: J
authors.lastname: Zhao
authors.forename: Kai
authors.initials: K
authors.lastname: Zhang
authors.forename: Zhihua
authors.initials: Z
authors.lastname: Chen
authors.forename: Zhanhua
authors.initials: Z
authors.lastname: Wei
authors.forename: Ya
authors.initials: Y
authors.lastname: Yi
authors.forename: Jiannong
authors.initials: J
authors.lastname: Wang
authors.forename: Shihe
authors.initials: S
authors.lastname: Yang
authors.forename: Fei
authors.initials: F
authors.lastname: Huang
authors.forename: Antonio
authors.initials: A
authors.lastname: Facchetti
authors.forename: Harald
authors.initials: H
authors.lastname: Ade
authors.forename: He
authors.initials: H
authors.lastname: Yan
keywords: all polymer solar cell; domain size; low bandgap polymer; resonant soft X-ray scattering