DICP OpenIR
Engineered Directional Charge Flow in Mixed Two-Dimensional Perovskites Enabled by Facile Cation-Exchange
Wang, Junhui; Leng, Jing; Liu, Junxue; He, Sheng; Wang, Yu; Wu, Kaifeng1; Jin, Shengye1
Source PublicationJOURNAL OF PHYSICAL CHEMISTRY C
2017-10-05
DOI10.1021/acs.jpcc.7b08535
Volume121Issue:39Pages:21281-21289
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
WOS SubjectChemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science
WOS KeywordLIGHT-EMITTING-DIODES ; ORGANOMETAL HALIDE PEROVSKITE ; SOLAR-CELLS ; CH3NH3PBI3 PEROVSKITE ; QUANTUM CONFINEMENT ; 2D PEROVSKITES ; IODIDE ; TRANSFORMATION ; EFFICIENCY ; ELECTRON
AbstractTwo-dimensional (2D) organolead halide perovskites are promising candidates for many optoelectronic applications in view of their improved moisture-resistance and tunability in bandgap energy as compared to their 3D counterparts. Herein, we demonstrate the use of cation exchange between A and B in (A)(2)(B)(n-1)PbnI3n+1 (A = CH3(CH2)(3)NH3+, B = CH3NH3+) to fabricate mixed 2D perovskites with well-controlled n-values of perovskite constituentsas well as their relative amounts. We find that the perovskite components in thin films can be systematically tuned from pure 3D to 2D mixture (containing multiple 2D components), and to pure single-phase 2D (n = 1) by simply adjusting the cation-exchange time. Extensive static and transient spectroscopic measurements show the internal electron-hole separation in the mixed 2D perovskite film clue to the ordered band alignment between different perovskite components. This engineered directional charge flow can be particularly helpful for the photovoltaic application of 2D perovskites.
Language英语
WOS IDWOS:000412716300021
Citation statistics
Cited Times:12[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/150230
Collection中国科学院大连化学物理研究所
Affiliation1.Chinese Acad Sci, State Key Lab Mol React Dynam, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
2.Chinese Acad Sci, Collaborat Innovat Ctr Chem Energy Mat iChEM, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
Recommended Citation
GB/T 7714
Wang, Junhui,Leng, Jing,Liu, Junxue,et al. Engineered Directional Charge Flow in Mixed Two-Dimensional Perovskites Enabled by Facile Cation-Exchange[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2017,121(39):21281-21289.
APA Wang, Junhui.,Leng, Jing.,Liu, Junxue.,He, Sheng.,Wang, Yu.,...&Jin, Shengye.(2017).Engineered Directional Charge Flow in Mixed Two-Dimensional Perovskites Enabled by Facile Cation-Exchange.JOURNAL OF PHYSICAL CHEMISTRY C,121(39),21281-21289.
MLA Wang, Junhui,et al."Engineered Directional Charge Flow in Mixed Two-Dimensional Perovskites Enabled by Facile Cation-Exchange".JOURNAL OF PHYSICAL CHEMISTRY C 121.39(2017):21281-21289.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Wang, Junhui]'s Articles
[Leng, Jing]'s Articles
[Liu, Junxue]'s Articles
Baidu academic
Similar articles in Baidu academic
[Wang, Junhui]'s Articles
[Leng, Jing]'s Articles
[Liu, Junxue]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Wang, Junhui]'s Articles
[Leng, Jing]'s Articles
[Liu, Junxue]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.