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题名:
The energy level alignment at the CH3NH3PbI3/pentacene interface
作者: Ji, GW; Zhao, B; Song, F; Zheng, GHJ; Zhang, XN; Shen, KC; Yang, YG; Chen, S; Gao, XY
刊名: APPLIED SURFACE SCIENCE
出版日期: 2017
卷号: 393, 页码:417-421
关键词: Perovskite solar cell ; Interface electronic structure ; Energy level alignment
DOI: 10.1016/j.apsusc.2016.10.033
文章类型: 期刊论文
英文摘要: Pentacene thin film on CH3NH3PbI3 was studied by in-situ X-ray photoelectron spectroscopy and ultraviolet photoelectron spectroscopy to determine their interfacial energy level alignment. A 0.2 eV downward band bending together with a 0.1 eV interfacial dipole was found at the pentacene side, whereas there was no band bending found at the CH(3)NH(3)Pbl(3) side. The offset between CH3NH3PbI3 Valance Band Maximum (VBM) and pentacene Highest Occupied Molecular Orbital (HOMO) and that between CH3NH3PbI3 Conduction Band Minimum (CBM) and pentacene Lowest Unoccupied Molecular Orbital (LUMO) was determined to be 0.7 and 1.35 eV, respectively. The band alignment at this interface is favor of efficient hole transfer, which suggests pentacene as a viable HTL candidate to be explored in perovskite solar cells. (C) 2016 Elsevier B.V. All rights reserved.
收录类别: SCI
语种: 英语
WOS记录号: WOS:000389090700048
ISSN号: 0169-4332
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.sinap.ac.cn/handle/331007/27473
Appears in Collections:中科院上海应用物理研究所2011-2017年_期刊论文

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Recommended Citation:
Ji, GW,Zhao, B,Song, F,et al. The energy level alignment at the CH3NH3PbI3/pentacene interface[J]. APPLIED SURFACE SCIENCE,2017-01-01,393:417-421.
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文件名: The energy level alignment at the CH3NH3PbI3_pentacene interface.pdf
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