Mixed-Phase Low-Dimensional Perovskite-Assisted Interfacial Lead Directional Management for Stable Perovskite Solar Cells with Efficiency over 24%

doi:10.1021/acsenergylett.1c01878

	Mixed-Phase Low-Dimensional Perovskite-Assisted Interfacial Lead Directional Management for Stable Perovskite Solar Cells with Efficiency over 24%
	Liu, Guozhen 2; Zheng, Haiying 1,3; Ye, Jiajiu 2; Xu, Shendong 2; Zhang, Liying 2; Xu, Huifen 2; Liang, Zheng 2; Chen, Xiaojing 2; Pan, Xu 2
刊名	ACS ENERGY LETTERS
	2021-12-10
卷号	6
ISSN号	2380-8195
DOI	10.1021/acsenergylett.1c01878
通讯作者	Zheng, Haiying(hyzheng@ahu.edu.cn) ; Pan, Xu(xpan@rntek.cas.cn)
英文摘要	The efficiency and stability of perovskite solar cells are affected by the Pb-I antisite and uncoordinated Pb-0 defects existing at the interface. Directional management of Pb-based defects can reduce the defect density and voltage loss. In this work, to settle the Pb-based defects at the interface for further stabilization of the perovskite surface, we propose the strategy of designing a low-dimensional perovskite (LDP) by an amphoteric heterocyclic cation which can increase the defect formation energies and inhibit the generation of Pb-I antisite defects. The growth of the mixed-phase LDP can introduce a strong interaction with under-coordinated Pb2+ upon the surface of peroskite films accomplished with the ability of dealing with different types of surface-terminating ends. The modified devices showed an increased efficiency of 24.07% (stabilized efficiency of 23.25%) as well as improved overall stability. This opens up a direction for prompting the practical application of perovskite photovoltaic devices based on the directional management of Pb-based interface defects.
资助项目	China Postdoctoral Science Foundation[2021M693213] ; Natural Science Foundation of Anhui Province[2108085QE190] ; Natural Science Foundation of Anhui Province[2008085QE208] ; CASHIPS Director's Fund[YZJJ2021QN20]
WOS关键词	DEFECTS
WOS研究方向	Chemistry ; Electrochemistry ; Energy & Fuels ; Science & Technology - Other Topics ; Materials Science
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000731062000029
资助机构	China Postdoctoral Science Foundation ; Natural Science Foundation of Anhui Province ; CASHIPS Director's Fund
内容类型	期刊论文
源URL	[http://ir.hfcas.ac.cn:8080/handle/334002/126952]
专题	中国科学院合肥物质科学研究院
通讯作者	Zheng, Haiying; Pan, Xu
作者单位	1.Anhui Univ, Inst Informat Technol, Hefei 230601, Peoples R China 2.Chinese Acad Sci, Hefei Inst Phys Sci, Inst Solid State Physm, Key Lab Photovolta & Energy Conservat Mat, Hefei 230031, Peoples R China 3.Anhui Univ, Inst Phys Sci, Hefei 230601, Peoples R China
推荐引用方式 GB/T 7714	Liu, Guozhen,Zheng, Haiying,Ye, Jiajiu,et al. Mixed-Phase Low-Dimensional Perovskite-Assisted Interfacial Lead Directional Management for Stable Perovskite Solar Cells with Efficiency over 24%[J]. ACS ENERGY LETTERS,2021,6.
APA	Liu, Guozhen.,Zheng, Haiying.,Ye, Jiajiu.,Xu, Shendong.,Zhang, Liying.,...&Pan, Xu.(2021).Mixed-Phase Low-Dimensional Perovskite-Assisted Interfacial Lead Directional Management for Stable Perovskite Solar Cells with Efficiency over 24%.ACS ENERGY LETTERS,6.
MLA	Liu, Guozhen,et al."Mixed-Phase Low-Dimensional Perovskite-Assisted Interfacial Lead Directional Management for Stable Perovskite Solar Cells with Efficiency over 24%".ACS ENERGY LETTERS 6(2021).