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An effect of the Zn3d-states on UV and X-ray spectra in ZnOстатья
Информация о цитировании статьи получена из
Web of Science,
Scopus
Статья опубликована в журнале из списка Web of Science и/или Scopus
Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
- Авторы: Mikheeva E.P., Koscheev S.V., Ruzankin S.Ph, Zhidomirov G.M., Leontiev S.A., Devjatov V.G., Cherkashin A.E.
- Журнал: Journal of Electron Spectroscopy and Related Phenomena
- Том: 94
- Номер: 1-2
- Год издания: 1998
- Издательство: Elsevier BV
- Местоположение издательства: Netherlands
- Первая страница: 59
- Последняя страница: 71
- Аннотация: The present study deals with ZnO photoelectronic spectra (PES) recorded at 1253.6 eV as well as within a wide photon energy range of 30-150 eV. It has been shown that the shape of the O2p valence band PES depends on the incident photon energy. On the basis of SCF Xα-scattered waves (Xα-SW) cluster approximation, the O2p valence band PES have been calculated in the given photon energy range. The changes in the O2p PES shape are proved to be caused by Zn3d electrons, which participate in the covalent binding along with Zn4s electrons. The percentage of the Zn3d-states was obtained on the basis of the quantum-chemical calculations and using the photon energy dependence of the integral intensity ratio I O2p/I Zn3d. Based on this result, the ZnO stoichiometry and the concentration ratio profile [O]/[Zn] as a function of the escape depth have been calculated. The weight of Zn3d-states, as evaluated from the photon energy dependence, is 9%. A theoretical prediction for this weight is 7%, which is very close to the experimental value. © 1998 Elsevier Science B.V. All rights reserved.
- Добавил в систему: Жидомиров Георгий Михайлович