气候变化领域集成服务门户(CCPortal): Over 14% efficiency all-polymer solar cells enabled by a low bandgap polymer acceptor with low energy loss and efficient charge separation

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DOI	10.1039/d0ee01828g
	Over 14% efficiency all-polymer solar cells enabled by a low bandgap polymer acceptor with low energy loss and efficient charge separation
	Fan Q.; An Q.; Lin Y.; Xia Y.; Li Q.; Zhang M.; Su W.; Peng W.; Zhang C.; Liu F.; Hou L.; Zhu W.; Yu D.; Xiao M.; Moons E.; Zhang F.; Anthopoulos T.D.; Inganäs O.; Wang E.
发表日期	2020
ISSN	1754-5692
起始页码	5017
结束页码	5027
卷号	13 期号:12
英文摘要	Obtaining both high open-circuit voltage (Voc) and short-circuit current density (Jsc) has been a major challenge for efficient all-polymer solar cells (all-PSCs). Herein, we developed a polymer acceptor PF5-Y5 with excellent optical absorption capability (onset extending to ∼880 nm and maximum absorption coefficient exceeding 105 cm-1 in a film), high electron mobility (3.18 × 10-3 cm2 V-1 s-1) and high LUMO level (-3.84 eV) to address such a challenge. As a result, the PBDB-T:PF5-Y5-based all-PSCs achieved a high power conversion efficiency of up to 14.45% with both a high Voc (0.946 V) and a high Jsc (20.65 mA cm-2), due to the high and broad absorption coverage, small energy loss (0.57 eV) and efficient charge separation and transport in the device, which are among the best values in the all-PSC field. In addition, the all-PSC shows a ∼15% improvement in PCE compared to its counterpart small molecule acceptor (Y5)-based device. Our results suggest that PF5-Y5 is a very promising polymer acceptor candidate for applications in efficient all-PSCs. This journal is © The Royal Society of Chemistry.
语种	英语
scopus关键词	Conversion efficiency; Energy dissipation; Light absorption; Open circuit voltage; Polymers; Absorption capability; Absorption co-efficient; All-Polymer Solar Cells; Broad absorptions; Charge separations; High electron mobility; High power conversion; Low bandgap polymers; Polymer solar cells; efficiency measurement; energy efficiency; fuel cell; polymer; separation
来源期刊	Energy and Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/162447
作者单位	Department of Chemistry and Chemical Engineering, Chalmers University of Technology, Göteborg, SE-412 96, Sweden; School of Chemistry and Chemical Engineering, Beijing Institute of Technology, Beijing, 100081, China; King Abdullah University of Science and Technology (KAUST), Kaust Solar Center (KSC), Thuwal, 23955, Saudi Arabia; Biomolecular and Organic Electronics, Department of Physics, Chemistry and Biology (IFM), Linköping University, Linköping, SE-581 83, Sweden; National Laboratory of Solid State Microstructures, School of Physics, Collaborative Innovation Center of Advanced Microstructures, Nanjing University, Nanjing, 210093, China; Department of Physics and Astronomy, Shanghai Jiaotong University, Shanghai, 200240, China; Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Guangzhou Key Laboratory of Vacuum Coating Technologies and New Energy Materials, Siyuan Laboratory, Department of Physics, Jinan University, Guangzhou, 510632, China; Department of Engineering and...
推荐引用方式 GB/T 7714	Fan Q.,An Q.,Lin Y.,et al. Over 14% efficiency all-polymer solar cells enabled by a low bandgap polymer acceptor with low energy loss and efficient charge separation[J],2020,13(12).
APA	Fan Q..,An Q..,Lin Y..,Xia Y..,Li Q..,...&Wang E..(2020).Over 14% efficiency all-polymer solar cells enabled by a low bandgap polymer acceptor with low energy loss and efficient charge separation.Energy and Environmental Science,13(12).
MLA	Fan Q.,et al."Over 14% efficiency all-polymer solar cells enabled by a low bandgap polymer acceptor with low energy loss and efficient charge separation".Energy and Environmental Science 13.12(2020).