Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
5356579 | Applied Surface Science | 2015 | 10 Pages |
Abstract
This paper focused on investigating the band alignment at the Cu2SnS3 (CTS)/In2S3 heterojunction interface by X-ray photoemission spectroscopy. An In2S3 over-layer was grown on a CTS thin film, which was grown by sulfurization of vacuum thermal evaporated Sn-Cu metallic precursors in a H2S:N2 atmosphere. The valence band offset (VBO) at the CTS/In2S3 interface was measured to be 1.27 ± 0.10 eV. The conduction band offset (CBO) was calculated from the measured VBO, giving (0.58 ± 0.10) eV. These values show that the CBO has a spike-like behavior and the interface is a 'type I'.
Related Topics
Physical Sciences and Engineering
Chemistry
Physical and Theoretical Chemistry
Authors
Hongjie Jia, Shuying Cheng, Hong Zhang, Jinling Yu, Yunfeng Lai,