title: Reduced Intramolecular Twisting Improves the Performance of 3D Molecular Acceptors in Non-Fullerene Organic Solar Cells.
abstract: A small-molecular acceptor, tetraphenylpyrazine-perylenediimide tetramer (TPPz-PDI4), which has a reduced extent of intramolecular twisting compared to two other small-molecular acceptors is designed. Benefiting from the lowest extent of intramolecular twisting, TPPz-PDI4exhibits the highest aggregation tendency and electron mobility, and therefore achieves a highest power conversion efficiency of 7.1%.
authors: Hong Kong University of Science and Technology-Shenzhen Research Institute, No. 9 Yuexing 1st RD, Hi-tech Park, Nanshan, Shenzhen, 518057, China.|Department of Chemistry and Energy Institute, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong SAR, 999077.
authors: Haoran
authors: H
authors: Lin
authors: Hong Kong University of Science and Technology-Shenzhen Research Institute, No. 9 Yuexing 1st RD, Hi-tech Park, Nanshan, Shenzhen, 518057, China.|Department of Chemistry and Energy Institute, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong SAR, 999077.
authors: Shangshang
authors: S
authors: Chen
authors: Department of Chemistry and Energy Institute, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong SAR, 999077.
authors: Huawei
authors: H
authors: Hu
authors: Department of Chemistry and State Key Laboratory of Molecular Neuroscience, Center for System Biology and Human Health, School of Science and IAS, The Hong Kong University of Science and Technology, Kowloon, Hong Kong, 999077.
authors: Lu
authors: L
authors: Zhang
authors: Department of Chemistry and Energy Institute, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong SAR, 999077.
authors: Tingxuan
authors: T
authors: Ma
authors: Department of Chemistry and Energy Institute, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong SAR, 999077.
authors: Joshua Yuk Lin
authors: JY
authors: Lai
authors: Hong Kong University of Science and Technology-Shenzhen Research Institute, No. 9 Yuexing 1st RD, Hi-tech Park, Nanshan, Shenzhen, 518057, China.|Department of Chemistry and Energy Institute, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong SAR, 999077.
authors: Zhengke
authors: Z
authors: Li
authors: State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, 510640, China.
authors: Anjun
authors: A
authors: Qin
authors: Department of Chemistry and State Key Laboratory of Molecular Neuroscience, Center for System Biology and Human Health, School of Science and IAS, The Hong Kong University of Science and Technology, Kowloon, Hong Kong, 999077.
authors: Xuhui
authors: X
authors: Huang
authors: Department of Chemistry and Energy Institute, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong SAR, 999077.|State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, 510640, China.
authors: Benzhong
authors: B
authors: Tang
authors: Hong Kong University of Science and Technology-Shenzhen Research Institute, No. 9 Yuexing 1st RD, Hi-tech Park, Nanshan, Shenzhen, 518057, China. hyan@ust.hk.|Department of Chemistry and Energy Institute, The Hong Kong University of Science and Technology, Clear Water Bay, Hong Kong SAR, 999077. hyan@ust.hk.|State Key Laboratory of Luminescent Materials and Devices, South China University of Technology, Guangzhou, 510640, China. hyan@ust.hk.
authors: He
authors: H
authors: Yan
keywords: high mobility; reduced intramolecular twisting; small-molecular acceptors; structural-property relationships; twisted 3D structures