气候变化领域集成服务门户(CCPortal): Fullerene derivative anchored SnO2 for high-performance perovskite solar cells

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DOI	10.1039/c8ee02172d
	Fullerene derivative anchored SnO2 for high-performance perovskite solar cells
	Liu K.; Chen S.; Wu J.; Zhang H.; Qin M.; Lu X.; Tu Y.; Meng Q.; Zhan X.
发表日期	2018
ISSN	17545692
起始页码	3463
结束页码	3471
卷号	11 期号:12
英文摘要	A fullerene derivative, 9-(1-(6-(3,5-bis(hydroxymethyl)phenoxy)-1-hexyl)-1H-1,2,3-triazol-4-yl)-1-nonyl [60]fullerenoacetate (C9), is employed to anchor the surface of a SnO2 electron transport layer (ETL) in planar heterojunction perovskite solar cells (PSCs). C9 suppresses charge recombination due to efficient passivation of oxygen-vacancy-related defects on the surface of the SnO2 ETL through the formation of a Lewis adduct between the under-coordinated Sn in SnO2 and hydroxyl terminal groups in C9. The C9 modifying layer enhances the extraction of photogenerated charge carriers due to the negligible injection barrier and strong electron affinity. C9 can also improve the quality of the perovskite film with enlarged grain size, reduced grain boundary and improved crystallinity. The PSCs based on C9-modified SnO2 exhibit improved photovoltaic performance with efficiency up to 21.3% with negligible hysteresis, which is superior to the control devices based on bare SnO2 (20.0%). Moreover, the ambient, photo and electric-field stability of the modified devices is also enhanced. © 2018 The Royal Society of Chemistry.
英文关键词	Electric fields; Electron affinity; Electron transport properties; Fullerenes; Grain boundaries; Heterojunctions; Image enhancement; Oxygen vacancies; Perovskite; Perovskite solar cells; Charge recombinations; Electron transport layers; Fullerene derivative; Injection barriers; Perovskite films; Photogenerated charge carriers; Photovoltaic performance; Vacancy-related defects; Solar cells; crystallinity; electron; extraction method; fuel cell; fullerene; performance assessment; perovskite; photovoltaic system
语种	英语
来源期刊	Energy & Environmental Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/190046
作者单位	Department of Materials Science and Engineering, College of Engineering, Key Laboratory of Polymer Chemistry and Physics of Ministry of Education, Peking University, Beijing, 100871, China; CAS Key Laboratory for Renewable Energy, Beijing Key Laboratory for New Energy Materials and Devices, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China; Jiangsu Key Laboratory of Advanced Functional Polymer Design and Application, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou, 215123, China; Department of Physics, Chinese University of Hong Kong, New Territories, 999077, Hong Kong
推荐引用方式 GB/T 7714	Liu K.,Chen S.,Wu J.,et al. Fullerene derivative anchored SnO2 for high-performance perovskite solar cells[J],2018,11(12).
APA	Liu K..,Chen S..,Wu J..,Zhang H..,Qin M..,...&Zhan X..(2018).Fullerene derivative anchored SnO2 for high-performance perovskite solar cells.Energy & Environmental Science,11(12).
MLA	Liu K.,et al."Fullerene derivative anchored SnO2 for high-performance perovskite solar cells".Energy & Environmental Science 11.12(2018).