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

文献类型：期刊论文

作者Zhao, Chunyi2,3,4; Tian, Wenming2,3; Leng, Jing2,3; Zhao, Yang1; Jin, Shengye2,3
刊名JOURNAL OF PHYSICAL CHEMISTRY LETTERS
出版日期2019-07-18
卷号10期号:14页码:3950-3954
ISSN号1948-7185
DOI10.1021/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.
WOS关键词HALIDE PEROVSKITES ; THIN-FILMS ; STATES ; CH3NH3PBI3 ; CARRIERS
资助项目MOST[2018YFA0208704] ; MOST[2016YFA0200602] ; NSFC[21703241] ; NSFC[21725305] ; Youth Innovation Promotion Association CAS[2019188]
WOS研究方向Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
语种英语
WOS记录号WOS:000476694300019
出版者AMER CHEMICAL SOC
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
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.

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来源：大连化学物理研究所

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