气候变化领域集成服务门户(CCPortal): Alloy-like ternary polymer solar cells with over 17.2% efficiency

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DOI	10.1016/j.scib.2020.01.012
	Alloy-like ternary polymer solar cells with over 17.2% efficiency
	An Q.; Wang J.; Gao W.; Ma X.; Hu Z.; Gao J.; Xu C.; Hao M.; Zhang X.; Yang C.; Zhang F.
发表日期	2020
ISSN	20959273
起始页码	538
结束页码	545
卷号	65 期号:7
英文摘要	Ternary strategy has been considered as an efficient method to achieve high performance polymer solar cells (PSCs). A power conversion efficiency (PCE) of 17.22% is achieved in the optimized ternary PSCs with 10 wt% MF1 in acceptors. The over 8% PCE improvement by employing ternary strategy is attributed to the simultaneously increased JSC of 25.68 mA cm−2, VOC of 0.853 V and FF of 78.61% compared with Y6 based binary PSCs. The good compatibility of MF1 and Y6 can be confirmed from Raman mapping, contact angle, cyclic voltammetry and morphology, which is the prerequisite to form alloy-like state. Electron mobility in ternary active layers strongly depends on MF1 content in acceptors due to the different lowest unoccupied molecular orbital (LUMO) levels of Y6 and MF1, which can well explain the wave-like varied FF of ternary PSCs. The third-party certified PCE of 16.8% should be one of the highest values for single bulk heterojunction PSCs. This work provides sufficient references for selecting materials to achieve efficient ternary PSCs. © 2020 Science China Press
关键词	Alloy-like model Nonfullerene acceptor Polymer solar cells Ternary strategy
英文关键词	Contact angle; Cyclic voltammetry; Heterojunctions; Active Layer; Bulk heterojunction; Good compatibility; Nonfullerene acceptor; Raman mapping; Ternary strategy; Third parties; Polymer solar cells
语种	英语
来源期刊	Science Bulletin
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/206986
作者单位	School of Electrical Engineering, Beijing Jiaotong University, Beijing, 100044, China; College of Physics and Electronic Engineering, Taishan University, Taian, 271021, China; Shenzhen Key Laboratory of Polymer Science and Technology, College of Materials Science and Engineering, Shenzhen University, Shenzhen, 518060, China; Hubei Key Laboratory on Organic and Polymeric Optoelectronic Materials, Department of Chemistry, Wuhan University, Wuhan, 400072, China; State Centre for International Cooperation on Designer Low-Carbon & Environmental Materials, School of Materials Science and Engineering, Zhengzhou University, Zhengzhou, 450001, China; School of Science, Beijing Jiaotong University, Beijing, 100044, China
推荐引用方式 GB/T 7714	An Q.,Wang J.,Gao W.,et al. Alloy-like ternary polymer solar cells with over 17.2% efficiency[J],2020,65(7).
APA	An Q..,Wang J..,Gao W..,Ma X..,Hu Z..,...&Zhang F..(2020).Alloy-like ternary polymer solar cells with over 17.2% efficiency.Science Bulletin,65(7).
MLA	An Q.,et al."Alloy-like ternary polymer solar cells with over 17.2% efficiency".Science Bulletin 65.7(2020).