Non-Fullerene-Acceptor-Based Bulk-Heterojunction Organic Solar Cells with Efficiency over 7.
A novel perylene bisimide (PBI) dimer-based acceptor material, SdiPBI-S, was developed. Conventional bulk-heterojunction (BHJ) solar cells based on SdiPBI-S and the wide-band-gap polymer PDBT-T1 show a high power conversion efficiency (PCE) of 7.16% with a high open-circuit voltage of 0.90 V, a high short-circuit current density of 11.98 mA/cm(2), and an impressive fill factor of 66.1%. Favorable phase separation and balanced carrier mobilites in the BHJ films account for the high photovoltaic performance. The results demonstrate that fine-tuning of PBI-based materials is a promising way to improve the PCEs of non-fullerene BHJ organic solar cells.
Beijing National Laboratory for Molecular Science, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, P. R. China.|University of Chinese Academy of Sciences , Beijing 100049, P. R. China.
Dan
D
Sun
Beijing National Laboratory for Molecular Science, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, P. R. China.|University of Chinese Academy of Sciences , Beijing 100049, P. R. China.
Dong
D
Meng
Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, Beijing Key Laboratory of Bio-inspired Energy Materials and Devices, School of Chemistry and Environment, Beihang University , Beijing 100191, P. R. China.|Heeger Beijing Research and Development Center, International Research Institute for Multidisciplinary Science, Beihang University , Beijing 100191, P. R. China.
Yunhao
Y
Cai
Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, Beijing Key Laboratory of Bio-inspired Energy Materials and Devices, School of Chemistry and Environment, Beihang University , Beijing 100191, P. R. China.|Heeger Beijing Research and Development Center, International Research Institute for Multidisciplinary Science, Beihang University , Beijing 100191, P. R. China.
Bingbing
B
Fan
Beijing National Laboratory for Molecular Science, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, P. R. China.
Yan
Y
Li
Beijing National Laboratory for Molecular Science, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, P. R. China.
Wei
W
Jiang
Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, Beijing Key Laboratory of Bio-inspired Energy Materials and Devices, School of Chemistry and Environment, Beihang University , Beijing 100191, P. R. China.|Heeger Beijing Research and Development Center, International Research Institute for Multidisciplinary Science, Beihang University , Beijing 100191, P. R. China.
Lijun
L
Huo
Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, Beijing Key Laboratory of Bio-inspired Energy Materials and Devices, School of Chemistry and Environment, Beihang University , Beijing 100191, P. R. China.|Heeger Beijing Research and Development Center, International Research Institute for Multidisciplinary Science, Beihang University , Beijing 100191, P. R. China.
Yanming
Y
Sun
Beijing National Laboratory for Molecular Science, Key Laboratory of Organic Solids, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, P. R. China.
Zhaohui
Z
Wang
D011211:Electric Power Supplies; D007094:Imides / Q000737:chemistry*; D015394:Molecular Structure; D010569:Perylene / Q000031:analogs & derivatives* / Q000737:chemistry; D011108:Polymers / Q000737:chemistry; D012993:Solar Energy
D007094:Imides; D011108:Polymers; C510697:perylene bisimide; D010569:Perylene