Valence band offset of MgO/TiO2 (rutile) heterojunction measured by X-ray photoelectron spectroscopy
Valence band offset of MgO/TiO2 (rutile) heterojunction measured by X-ray photoelectron spectroscopy
复制标题
X 射线光电子能谱测量 MgO/TiO2(金红石)异质结的价带偏移
DOI:
10.1016/j.apsusc.2010.05.074
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发表时间:
2010-09
影响因子:
6.7
通讯作者:
Jiao, Chunmei
中科院分区:
文献类型:
--
作者:
Wei, Hongyuan;Wang, Zhanguo;Zheng, Gaolin;Zhu, Qinsheng;Yang, Shaoyan;Guo, Yan;Liu, Xianglin;Yang, Anli;Wang, Jun;Song, Huaping;Jiao, Chunmei
The valence band offset (VBO) of MgO/TiO2 (rutile) heterojunction has been directly measured by X-ray photoelectron spectroscopy. The VBO of the heterojunction is determined to be 1.6±0.3 eV and the conduction band offset (CBO) is deduced to be 3.2±0.3 eV, indicating that the heterojunction exhibits a type-I band alignment. These large values are sufficient for MgO to act as tunneling barriers in TiO2 based devices. The accurate determination of the valence and conduction band offsets is important for use of MgO as a buffer layer in TiO2 based field-effect transistors and dye-sensitized solar cells.
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影响因子:
56.9
作者:
Matsumoto, Y;Murakami, M;Koinuma, H
通讯作者:
Koinuma, H
DOI:
10.1063/1.3143882
发表时间:
2009-06
期刊:
J Appl Phys
影响因子:
--
作者:
S. Wu;L. Xu;X. Xing;S. Li;Y. Yu
通讯作者:
Y. Yu
影响因子:
4
作者:
Liang Yan;C. Lopez;R. Shrestha;E. Irene;A. Suvorova;M. Saunders
通讯作者:
Liang Yan;C. Lopez;R. Shrestha;E. Irene;A. Suvorova;M. Saunders
影响因子:
3.7
作者:
W. Frensley;H. Kroemer
通讯作者:
W. Frensley;H. Kroemer
影响因子:
4
作者:
Sun, G. S.;Liu, X. L.;Yang, S. Y.;Wang, Z. G.;Wei, H. Y.;Zhang, B. L.;Zhang, P. F.;Zhu, Q. S.;Cai, F. F.;Fan, H. B.
通讯作者:
Fan, H. B.