title: Multi-Length-Scale Morphologies Driven by Mixed Additives in Porphyrin-Based Organic Photovoltaics.
abstract: A new category of deep-absorbing small molecules is developed. Optimized devices driven by mixed additives show a remarkable short-circuit current of ≈20 mA cm(-2) and a highest power conversion efficiency of 9.06%. A multi-length-scale morphology is formed, which is fully characterized by resonant soft X-ray scattering, high-angle annular dark film image transmission electron microscopy, etc.
authors.affiliation: Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, 381 Wushan Road, Guangzhou, 510640, China.
authors.forename: Ke
authors.initials: K
authors.lastname: Gao
authors.affiliation: Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, 381 Wushan Road, Guangzhou, 510640, China.
authors.forename: Jingsheng
authors.initials: J
authors.lastname: Miao
authors.affiliation: Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, 381 Wushan Road, Guangzhou, 510640, China.
authors.forename: Liangang
authors.initials: L
authors.lastname: Xiao
authors.affiliation: Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, 381 Wushan Road, Guangzhou, 510640, China.
authors.forename: Wanyuan
authors.initials: W
authors.lastname: Deng
authors.affiliation: Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, 381 Wushan Road, Guangzhou, 510640, China.
authors.forename: Yuanyuan
authors.initials: Y
authors.lastname: Kan
authors.affiliation: Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, 381 Wushan Road, Guangzhou, 510640, China.
authors.forename: Tianxiang
authors.initials: T
authors.lastname: Liang
authors.affiliation: Advanced Light Source, Lawrence Berkeley National Lab, Berkeley, CA, 94720, USA.
authors.forename: Cheng
authors.initials: C
authors.lastname: Wang
authors.affiliation: Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, 381 Wushan Road, Guangzhou, 510640, China.
authors.forename: Fei
authors.initials: F
authors.lastname: Huang
authors.affiliation: Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, 381 Wushan Road, Guangzhou, 510640, China.
authors.forename: Junbiao
authors.initials: J
authors.lastname: Peng
authors.affiliation: Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, 381 Wushan Road, Guangzhou, 510640, China.
authors.forename: Yong
authors.initials: Y
authors.lastname: Cao
authors.affiliation: Materials Sciences Division, Lawrence Berkeley National Lab, Berkeley, CA, 94720, USA.
authors.forename: Feng
authors.initials: F
authors.lastname: Liu
authors.affiliation: Materials Sciences Division, Lawrence Berkeley National Lab, Berkeley, CA, 94720, USA.|Polymer Science and Engineering Department, University of Massachusetts, Amherst, MA, 01003, USA.
authors.forename: Thomas P
authors.initials: TP
authors.lastname: Russell
authors.affiliation: Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, 381 Wushan Road, Guangzhou, 510640, China.
authors.forename: Hongbin
authors.initials: H
authors.lastname: Wu
authors.affiliation: Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, 381 Wushan Road, Guangzhou, 510640, China.
authors.forename: Xiaobin
authors.initials: X
authors.lastname: Peng
keywords: mixed additives; multi-length-scale morphologies; organic solar cells; porphyrin; small molecules