CAS OpenIR  > 中科院上海应用物理研究所2011-2020年
Chemical interaction dictated energy level alignment at the N,N '-dipentyl-3,4,9,10-perylenedicarboximide/CH3NH3PbI3 interface
Zhang, XN; Su, ZH; Zhao, B; Yang, YG; Xiong, YM; Gao, XY; Qi, DC; Cao, L
2018
Source PublicationAPPLIED PHYSICS LETTERS
ISSN0003-6951
Volume113Issue:11Pages:-
Subtype期刊论文
AbstractHere, we report the electronic structures at the N, N'-dipentyl-3,4,9,10-perylenedicarboximide (PTCDI-C5)/CH3NH3PbI3 interface identified in-situ by X-ray photoemission spectroscopy and ultraviolet photoemission spectroscopy. Strong chemical reactions are found to occur upon the deposition of PTCDI-C5 molecules on CH3NH3PbI3. Electron donation from PTCDI-C5 molecules to CH3NH3PbI3 leads to the filling of surface states and the emergence of an interfacial gap state with its onset tailed to the Fermi level. As a consequence, the downward surface band bending resulting from surface states acting as donor states at the pristine perovskite surface is reduced by 0.2 eV. After the energy level alignment at the interface is established, the perovskite conduction band minimum is found to be in line with the lowest unoccupied molecular orbital favoring the electron extraction with a moderate valence band maximum-highest occupied molecular orbital offset of , similar to 0.7 eV. The present results demonstrate that interfacial chemical reactions can dictate energetics at organic/perovskite interfaces. Understanding the chemical interaction and resultant electronic structures at those interfaces is crucial for efficient and long-term stable perovskite-based devices when passivation of chemical active sites and matched energy level could be readily reached. Published by AIP Publishing.
KeywordPEROVSKITE SOLAR-CELLS ASSISTED SOLUTION PROCESS ELECTRONIC-STRUCTURE CH(3)NH(3)PBL(3) PEROVSKITE PHOTOVOLTAIC EFFICIENCY ORGANIC SEMICONDUCTORS CH3NH3PBI3 PEROVSKITE SINGLE-CRYSTALS TRANSPORT LAYER THIN-FILMS
DOI10.1063/1.5037624
Indexed BySCI
Language英语
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/30874
Collection中科院上海应用物理研究所2011-2020年
Affiliation1.Chinese Acad Sci, Shanghai Inst Appl Phys, 2019 Jia Luo Rd, Shanghai 201800, Peoples R China
2.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
3.Chinese Acad Sci, High Field Magnet Lab, Anhui Prov Key Lab Condensed Matter Phys Extreme, Hefei 230031, Anhui, Peoples R China
4.Queensland Univ Technol, Sch Chem Phys & Mech Engn, Brisbane, Qld 4001, Australia
5.La Trobe Univ, La Trobe Inst Mol Sci, Dept Chem & Phys, Melbourne, Vic 3086, Australia
Recommended Citation
GB/T 7714
Zhang, XN,Su, ZH,Zhao, B,et al. Chemical interaction dictated energy level alignment at the N,N '-dipentyl-3,4,9,10-perylenedicarboximide/CH3NH3PbI3 interface[J]. APPLIED PHYSICS LETTERS,2018,113(11):-.
APA Zhang, XN.,Su, ZH.,Zhao, B.,Yang, YG.,Xiong, YM.,...&Cao, L.(2018).Chemical interaction dictated energy level alignment at the N,N '-dipentyl-3,4,9,10-perylenedicarboximide/CH3NH3PbI3 interface.APPLIED PHYSICS LETTERS,113(11),-.
MLA Zhang, XN,et al."Chemical interaction dictated energy level alignment at the N,N '-dipentyl-3,4,9,10-perylenedicarboximide/CH3NH3PbI3 interface".APPLIED PHYSICS LETTERS 113.11(2018):-.
Files in This Item: Download All
File Name/Size DocType Version Access License
Chemical interaction(1367KB)期刊论文出版稿开放获取CC BY-NC-SAView Download
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Zhang, XN]'s Articles
[Su, ZH]'s Articles
[Zhao, B]'s Articles
Baidu academic
Similar articles in Baidu academic
[Zhang, XN]'s Articles
[Su, ZH]'s Articles
[Zhao, B]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Zhang, XN]'s Articles
[Su, ZH]'s Articles
[Zhao, B]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Chemical interaction dictated energy level alignment at the N,N '-dipentyl-3,4,9,10-perylenedicarboximide_CH3NH3PbI3 interface.pdf
Format: Adobe PDF
All comments (0)
No comment.
 

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