Band alignments at interface of ZnO/FAPbI3 heterojunction by X-ray photoelectron spectroscopy

被引：8
作者：
Ding, Tao
Li, Ruifeng
Kong, Weiguang
Zhang, Bingpo
Wu, Huizhen [1 ]
机构：
[1] Zhejiang Univ, Dept Phys, Hangzhou 310027, Zhejiang, Peoples R China
来源：
APPLIED SURFACE SCIENCE | 2015年 / 357卷
基金：
中国国家自然科学基金;
关键词：
Band alignments; Heterojunction; FAPbI(3); ZnO; X-ray photoelectron spectroscopy; PEROVSKITE SOLAR-CELLS; PHOTOVOLTAICS; PERFORMANCE;
D O I：
10.1016/j.apsusc.2015.10.049
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
The band alignments at the interface of ZnO/HC(NH2)(2)PbI3 (FAPbI(3)) heterojunction were measured by X-ray photoelectron spectroscopy. Core levels of Pb 5d and Zn 3d were utilized to align the valence-band offset (VBO). The VBO was determined to be 1.86 +/- 0.30 eV, and the conduction-band offset (CBO) was concluded to be 0.05 +/- 0.30 eV, manifesting that the ZnO/FAPbI3 heterojunction has a type-I band alignment. The data of the band alignment of ZnO/FAPbI(3) heterojunction may benefit the design and development of novel perovskite solar cells (PSCs). (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：1743 / 1746
页数：4
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