title: A Difluorobenzoxadiazole Building Block for Efficient Polymer Solar Cells.
abstract: A difluorobenzoxadiazole building block is synthesized and utilized to construct a conjugated polymer leading to high-performance thick-film polymer solar cells with a V(OC) of 0.88 V and a power conversion efficiency of 9.4%. This new building block can be used in many possible polymer structures for various organic electro-nic applications.
authors.affiliation: Department of Chemistry and Energy Institute, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong.
authors.forename: Jingbo
authors.initials: J
authors.lastname: Zhao
authors.affiliation: Department of Chemistry and Energy Institute, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong.
authors.forename: Yunke
authors.initials: Y
authors.lastname: Li
authors.affiliation: Department of Physics and Organic and Carbon Electronics Laboratory (ORaCEL), North Carolina State University, Raleigh, NC, 27695, USA.
authors.forename: Adrian
authors.initials: A
authors.lastname: Hunt
authors.affiliation: Department of Chemistry and Energy Institute, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong.
authors.forename: Jianquan
authors.initials: J
authors.lastname: Zhang
authors.affiliation: Department of Chemistry and Energy Institute, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong.
authors.forename: Huatong
authors.initials: H
authors.lastname: Yao
authors.affiliation: Department of Chemistry and Energy Institute, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong.
authors.forename: Zhengke
authors.initials: Z
authors.lastname: Li
authors.affiliation: Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, 510640, P. R. China.
authors.forename: Jie
authors.initials: J
authors.lastname: Zhang
authors.affiliation: Institute of Polymer Optoelectronic Materials and Devices, State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, 510640, P. R. China.
authors.forename: Fei
authors.initials: F
authors.lastname: Huang
authors.affiliation: Department of Physics and Organic and Carbon Electronics Laboratory (ORaCEL), North Carolina State University, Raleigh, NC, 27695, USA.
authors.forename: Harald
authors.initials: H
authors.lastname: Ade
authors.affiliation: Department of Chemistry and Energy Institute, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong.|The Hong Kong University of Science and Technology-Shenzhen Research Institute, No. 9 Yuexing 1st RD, Hi-Tech Park, Nanshan, Shenzhen, 518057, P. R. China.
authors.forename: He
authors.initials: H
authors.lastname: Yan
keywords: conjugated polymer; difluorobenzoxadiazole; open-circuit voltage; polymer solar cells