Strategies for Modifying TiO2 Based Electron Transport Layers to Boost Perovskite Solar Cells

doi:10.1021/acssuschemeng.8b06580

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	Strategies for Modifying TiO2 Based Electron Transport Layers to Boost Perovskite Solar Cells
	Zhen, Chao 1,2; Wu, Tingting 1,2; Chen, Runze 1; Wang, Lianzhou 3,4; Liu, Gang 1,2; Cheng, Hui-Ming 1,5
刊名	ACS SUSTAINABLE CHEMISTRY & ENGINEERING
	2019-03-04
卷号	7 期号:5 页码:4586-4618
关键词	Solar cells Perovskite Electron transport layer TiO2
ISSN号	2168-0485
DOI	10.1021/acssuschemeng.8b06580
通讯作者	Wang, Lianzhou(l.wang@uq.edu.au) ; Liu, Gang(gangliu@imr.ac.cn)
英文摘要	The research on solution processed metal halide perovskite solar cells (PSCs) as a new type of solar cells has experienced explosive growth since the first report in 2009. It is impressive that solar energy conversion efficiency has increased to over 23%. Outstanding optoelectronic properties including high absorption coefficient, high mobility, and long diffusion length of charge carriers have been revealed in the family of hybrid organic inorganic halide perovskite materials that are considered the heart of solar cells. A long-anticipated feature for solar cells that the diffusion lengths of charge carriers outstrip the active layer thickness of a device has been demonstrated in PSCs so that the efficiency of extracting photocarriers, particularly electrons at the interfaces becomes a key parameter controlling global device performance. The n-type semiconductor TiO2 with the merits of thermal and chemical stability, low cost, and suitable band edge positions has been regarded an ideal electron transporting layer (ETL) material in PSCs performing the function of selectively extracting photoelectrons and subsequently delivering them toward a current collector. Besides the highly concerning energy conversion efficiency of PSCs, the challenge of the current-voltage hysteresis phenomenon and instability of PSCs are also revealed to be closely related with TiO2, ETLs. In this review, the recent progress on strategies for modifying TiO2 ETLs by controlling morphology, surface modification, doping, and constructing composites to improve global performance of PSCs is reviewed. Moreover, the perspective on future development of TiO2 based ETLs for high performance PSCs is proposed on the basis of the comprehensive and deep understanding of TiO2 from the area of photocatalysis. It is anticipated that finely tailoring the features and properties of TiO2 ETLs will further release large room for exciting enhancements in the global performance of PSCs.
资助项目	National Natural Science Foundation of China[51825204] ; National Natural Science Foundation of China[51572266] ; National Natural Science Foundation of China[51629201] ; Key Research Program of Frontier Sciences CAS[QYZDB-SSW-JSC039]
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Engineering
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000460600500004
资助机构	National Natural Science Foundation of China ; Key Research Program of Frontier Sciences CAS
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/132246]
专题	金属研究所_中国科学院金属研究所
通讯作者	Wang, Lianzhou; Liu, Gang
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, 72 Wenhua RD, Shenyang 110016, Liaoning, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, 72 Wenhua Rd, Shenyang 110016, Liaoning, Peoples R China 3.Univ Queensland, Sch Chem Engn, Nanomat Ctr, Brisbane, Qld 4072, Australia 4.Univ Queensland, AIBN, Brisbane, Qld 4072, Australia 5.Tsinghua Univ, Tsinghua Berkeley Shenzhen Inst, 1001 Xueyuan Rd, Shenzhen 518055, Peoples R China
推荐引用方式 GB/T 7714	Zhen, Chao,Wu, Tingting,Chen, Runze,et al. Strategies for Modifying TiO2 Based Electron Transport Layers to Boost Perovskite Solar Cells[J]. ACS SUSTAINABLE CHEMISTRY & ENGINEERING,2019,7(5):4586-4618.
APA	Zhen, Chao,Wu, Tingting,Chen, Runze,Wang, Lianzhou,Liu, Gang,&Cheng, Hui-Ming.(2019).Strategies for Modifying TiO2 Based Electron Transport Layers to Boost Perovskite Solar Cells.ACS SUSTAINABLE CHEMISTRY & ENGINEERING,7(5),4586-4618.
MLA	Zhen, Chao,et al."Strategies for Modifying TiO2 Based Electron Transport Layers to Boost Perovskite Solar Cells".ACS SUSTAINABLE CHEMISTRY & ENGINEERING 7.5(2019):4586-4618.