Controlling the Property of Edges in Layered 2D Perovskite Single Crystals

doi:10.1021/acs.jpclett.9b01193

	Controlling the Property of Edges in Layered 2D Perovskite Single Crystals
	Zhao, Chunyi 2,3,4; Tian, Wenming 2,3; Leng, Jing 2,3; Zhao, Yang 1; Jin, Shengye 2,3
刊名	JOURNAL OF PHYSICAL CHEMISTRY LETTERS
	2019-07-18
卷号	10 期号:14 页码:3950-3954
ISSN号	1948-7185
DOI	10.1021/acs.jpclett.9b01193
通讯作者	Tian, Wenming(tianwm@dicp.ac.cn) ; Jin, Shengye(sjin@dicp.ac.cn)
英文摘要	Two-dimensional (2D) hybrid perovskites have emerged as promising materials for optoelectronic devices owing to their improved stability. The crystal edges of layered 2D perovskites were found to play an important role in device performance by providing a pathway to dissociate bound excitons into long-lived free charge carriers. However, their formation mechanism and whether they are controllable remain unclear. Herein, we report a photoluminescence (PL) imaging study on layered (BA)(2)(MA)(n-1)PbnI3n+1 (BA = CH3(CH2)(3)NH3+, MA = CH3NH3+) perovskite single crystals before and after treatment with butylammonium iodide (BAI) and methylammonium iodide (MAI) solutions. We find that the crystal edges with exciton dissociation ability are induced by the loss of BA ligands and can be removed by adding additional BA cations and regenerated by BA-to-MA cation exchange. This work presents a simple yet efficient method to develop and control the properties of crystal edges for better applications in 2D perovskite devices.
资助项目	MOST[2018YFA0208704] ; MOST[2016YFA0200602] ; NSFC[21703241] ; NSFC[21725305] ; Youth Innovation Promotion Association CAS[2019188]
WOS关键词	HALIDE PEROVSKITES ; THIN-FILMS ; STATES ; CH3NH3PBI3 ; CARRIERS
WOS研究方向	Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000476694300019
资助机构	MOST ; MOST ; NSFC ; NSFC ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; MOST ; MOST ; NSFC ; NSFC ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; MOST ; MOST ; NSFC ; NSFC ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; MOST ; MOST ; NSFC ; NSFC ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS
内容类型	期刊论文
源URL	[http://cas-ir.dicp.ac.cn/handle/321008/173820]
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	Tian, Wenming; Jin, Shengye
作者单位	1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy DNL, Dalian 116023, Peoples R China 2.Chinese Acad Sci, State Key Lab Mol React Dynam, Dalian Inst Chem Phys, Dalian 116023, Peoples R China 3.Chinese Acad Sci, Dynam Res Ctr Energy & Environm Mat, Dalian Inst Chem Phys, Dalian 116023, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Zhao, Chunyi,Tian, Wenming,Leng, Jing,et al. Controlling the Property of Edges in Layered 2D Perovskite Single Crystals[J]. JOURNAL OF PHYSICAL CHEMISTRY LETTERS,2019,10(14):3950-3954.
APA	Zhao, Chunyi,Tian, Wenming,Leng, Jing,Zhao, Yang,&Jin, Shengye.(2019).Controlling the Property of Edges in Layered 2D Perovskite Single Crystals.JOURNAL OF PHYSICAL CHEMISTRY LETTERS,10(14),3950-3954.
MLA	Zhao, Chunyi,et al."Controlling the Property of Edges in Layered 2D Perovskite Single Crystals".JOURNAL OF PHYSICAL CHEMISTRY LETTERS 10.14(2019):3950-3954.