期刊
AIP ADVANCES
卷 5, 期 9, 页码 -出版社
AIP Publishing
DOI: 10.1063/1.4930545
关键词
-
资金
- National Science Foundation [CBET-1437656, DMR-1303742]
- China Scholarship Council
- Direct For Mathematical & Physical Scien
- Division Of Materials Research [1303742] Funding Source: National Science Foundation
- Div Of Chem, Bioeng, Env, & Transp Sys
- Directorate For Engineering [1437656] Funding Source: National Science Foundation
CH3NH3I, PbI2 and CH3NH3PbI3 films were fabricated by evaporation and characterized with X-ray Photoelectron Spectroscopy (XPS) and X-ray diffraction (XRD). The XPS results indicate that the PbI2 and CH3NH3PbI3 films are more uniform and stable than the CH3NH3I film. The atomic ratio of the CH3NH3I, PbI2 and CH3NH3PbI3 films are C:N:I= 1.00:1.01:0.70, Pb:I= 1.00:1.91 and C: N: Pb: I = 1.29:1.07:1.00:2.94, respectively. The atomic ratio of CH3NH3PbI3 is very close to that of the ideal perovskite. Small angle x-ray diffraction results demonstrate that the as evaporated CH3NH3PbI3 film is crystalline. The valence band maximum (VBM) and work function (WF) of the CH3NH3PbI3 film are about 0.85eV and 4.86eV, respectively. (C) 2015 Author(s).
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据