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Chemical interaction dictated energy level alignment at the N,N '-dipentyl-3,4,9,10-perylenedicarboximide/CH3NH3PbI3 interface

文献类型：期刊论文

作者Zhang, Xiaonan2,3; Su, Zhenhuang2,3; Zhao, Bin3; Yang, Yingguo3; Xiong, Yimin1; Gao, Xingyu3; Qi, Dong-Chen4,5; Cao, Liang1
刊名APPLIED PHYSICS LETTERS
出版日期2018-09-10
卷号113期号:11页码:5
ISSN号0003-6951
DOI10.1063/1.5037624
通讯作者Gao, Xingyu(gaoxingyu@sinap.ac.cn) ; Qi, Dong-Chen(dongchen.qi@qut.edu.au) ; Cao, Liang(lcao@hmfl.ac.cn)
英文摘要Here, 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.
WOS关键词PEROVSKITE 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
资助项目National Key Research and Development Program of China[2017YFA0403400] ; National Key Research and Development Program of China[2017YFB0701902] ; National Key Research and Development Program of China[2017YFA0402900] ; National Natural Science Foundation of China[11675252] ; National Natural Science Foundation of China[11175239] ; National Natural Science Foundation of China[11605278] ; National Natural Science Foundation of China[11705271] ; National Natural Science Foundation of China[U1632265] ; National Natural Science Foundation of China[11574317] ; National Natural Science Foundation of China[21503233] ; Anhui Provincial Natural Science Foundation[1608085MA07] ; Australian Research Council[FT160100207]
WOS研究方向Physics
语种英语
WOS记录号WOS:000444756300037
出版者AMER INST PHYSICS
资助机构National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Anhui Provincial Natural Science Foundation ; Anhui Provincial Natural Science Foundation ; Anhui Provincial Natural Science Foundation ; Anhui Provincial Natural Science Foundation ; Australian Research Council ; Australian Research Council ; Australian Research Council ; Australian Research Council ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Anhui Provincial Natural Science Foundation ; Anhui Provincial Natural Science Foundation ; Anhui Provincial Natural Science Foundation ; Anhui Provincial Natural Science Foundation ; Australian Research Council ; Australian Research Council ; Australian Research Council ; Australian Research Council
源URL[http://ir.hfcas.ac.cn:8080/handle/334002/39111]  
专题合肥物质科学研究院_中科院强磁场科学中心
通讯作者Gao, Xingyu; Qi, Dong-Chen; Cao, Liang
作者单位1.Chinese Acad Sci, High Field Magnet Lab, Anhui Prov Key Lab Condensed Matter Phys Extreme, Hefei 230031, Anhui, Peoples R China
2.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Shanghai Inst Appl Phys, 2019 Jia Luo Rd, Shanghai 201800, 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
推荐引用方式
GB/T 7714		 Zhang, Xiaonan,Su, Zhenhuang,Zhao, Bin,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):5.
APA Zhang, Xiaonan.,Su, Zhenhuang.,Zhao, Bin.,Yang, Yingguo.,Xiong, Yimin.,...&Cao, Liang.(2018).Chemical interaction dictated energy level alignment at the N,N '-dipentyl-3,4,9,10-perylenedicarboximide/CH3NH3PbI3 interface.APPLIED PHYSICS LETTERS,113(11),5.
MLA Zhang, Xiaonan,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):5.

入库方式： OAI收割

来源：合肥物质科学研究院

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