Iodine-Optimized Interface for Inorganic CsPbI2Br Perovskite Solar Cell to Attain High Stabilized Efficiency Exceeding 14%

doi:10.1002/advs.201801123

	Iodine-Optimized Interface for Inorganic CsPbI2Br Perovskite Solar Cell to Attain High Stabilized Efficiency Exceeding 14%
	Bian, Hui 1; Ding, Jianning 4; Zhang, Jingru 1; Jin, Zhiwen 1,2,3; Liang, Lei 1; Liu, Shengzhong (Frank)1,5; Yuan, Ningyi 4; Wang, Haoran 1; Bai, Dongliang 1; Wang, Kang 1
刊名	ADVANCED SCIENCE
	2018-12-01
卷号	5 期号:12 页码:8
关键词	CsPbI2Br efficiency inorganic iodine perovskite solar cells
ISSN号	2198-3844
DOI	10.1002/advs.201801123
通讯作者	Jin, Zhiwen(jinzhiwen@snnu.edu.cn) ; Wang, Qian(wangqian16@snnu.edu.cn) ; Liu, Shengzhong (Frank)(szliu@dicp.ac.cn)
英文摘要	Recently, inorganic CsPbI2Br perovskite is attracting ever-increasing attention for its outstanding optoelectronic properties and ambient phase stability. Here, an efficient CsPbI2Br perovskite solar cell (PSC) is developed by: 1) using a dimension-grading heterojunction based on a quantum dots (QDs)/bulk film structure, and 2) post-treatment of the CsPbI2Br QDs/film with organic iodine salt to form an ultrathin iodine-ion-enriched perovskite layer on the top of the perovskite film. It is found that the above procedures generate proper band edge bending for improved carrier collection, resulting in effectively decreased recombination loss and improved hole extraction efficiency. Meanwhile, the organic capping layer from the iodine salt also surrounds the QDs and tunes the surface chemistry for further improved charge transport at the interface. As a result, the champion device achieves long-term stabilized power conversion efficiency beyond 14%.
资助项目	National Key Research and Development Program of China MOST[2017YFA0204800] ; Fundamental Research Funds for the Central Universities[GK201703026/2018CSLZ012] ; National Natural Science Foundation of China[61704099/91733301] ; Natural Science Foundation of Shaanxi Province[2018JQ6072] ; 111 Project[B14041]
WOS关键词	LEAD HALIDE PEROVSKITES ; ANION-EXCHANGE ; THIN-FILMS ; NANOCRYSTALS ; PERFORMANCE ; ENERGY ; LAYER
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science
语种	英语
出版者	WILEY
WOS记录号	WOS:000453685900027
资助机构	National Key Research and Development Program of China MOST ; National Key Research and Development Program of China MOST ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation of Shaanxi Province ; Natural Science Foundation of Shaanxi Province ; 111 Project ; 111 Project ; National Key Research and Development Program of China MOST ; National Key Research and Development Program of China MOST ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation of Shaanxi Province ; Natural Science Foundation of Shaanxi Province ; 111 Project ; 111 Project ; National Key Research and Development Program of China MOST ; National Key Research and Development Program of China MOST ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation of Shaanxi Province ; Natural Science Foundation of Shaanxi Province ; 111 Project ; 111 Project ; National Key Research and Development Program of China MOST ; National Key Research and Development Program of China MOST ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Natural Science Foundation of Shaanxi Province ; Natural Science Foundation of Shaanxi Province ; 111 Project ; 111 Project
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/166480]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
通讯作者	Jin, Zhiwen; Liu, Shengzhong (Frank); Wang, Qian
作者单位	1.Shaanxi Normal Univ, Key Lab Appl Surface & Colloid Chem, Minist Educ,Shaanxi Key Lab Adv Energy Devices, Shaanxi Engn Lab Adv Energy Technol,Sch Mat Sci &, Xian 710119, Shaanxi, Peoples R China 2.Lanzhou Univ, Sch Phys Sci & Technol, Lanzhou 730000, Peoples R China 3.Lanzhou Univ, Key Lab Magnetism & Magnet Mat, MoE, Lanzhou 730000, Peoples R China 4.Changzhou Univ, Sch Mat Sci & Engn, Jiangsu Collaborat Innovat Ctr Photovolta Sci & E, Jiangsu Prov Cultivat Base State Key Lab Photovol, Changzhou 213164, Jiangsu, Peoples R China 5.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy iChEM, Dalian 116023, Peoples R China
推荐引用方式 GB/T 7714	Bian, Hui,Ding, Jianning,Zhang, Jingru,et al. Iodine-Optimized Interface for Inorganic CsPbI2Br Perovskite Solar Cell to Attain High Stabilized Efficiency Exceeding 14%[J]. ADVANCED SCIENCE,2018,5(12):8.
APA	Bian, Hui.,Ding, Jianning.,Zhang, Jingru.,Jin, Zhiwen.,Liang, Lei.,...&Wang, Qian.(2018).Iodine-Optimized Interface for Inorganic CsPbI2Br Perovskite Solar Cell to Attain High Stabilized Efficiency Exceeding 14%.ADVANCED SCIENCE,5(12),8.
MLA	Bian, Hui,et al."Iodine-Optimized Interface for Inorganic CsPbI2Br Perovskite Solar Cell to Attain High Stabilized Efficiency Exceeding 14%".ADVANCED SCIENCE 5.12(2018):8.