Manifestation of oxygen desorption in photoluminescence spectra of ZnO

I. Kh. Akopyan; M. E. Labzovskaya; A. A. Lisachenko; B. V. Novikov; A. Yu. Serov; V. V. Titov; N. G. Filosofov

doi:10.1134/S1063783416090031

Manifestation of oxygen desorption in photoluminescence spectra of ZnO

Authors: Akopyan I.K.¹, Labzovskaya M.E.¹, Lisachenko A.A.¹, Novikov B.V.¹, Serov A.Y.¹, Titov V.V.¹, Filosofov N.G.¹
Affiliations:
1. St. Petersburg State University
Issue: Vol 58, No 9 (2016)
Pages: 1767-1771
Section: Semiconductors
URL: https://ogarev-online.ru/1063-7834/article/view/198583
DOI: https://doi.org/10.1134/S1063783416090031
ID: 198583

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Abstract

The influence of oxygen desorption on the photoluminescence of zinc oxide has been investigated. Photodesorption and thermal desorption of oxygen have been controlled using mass spectrometry. It has been found that the removal of oxygen from the ZnO surface leads to a manifold increase in the exciton photoluminescence intensity. The process has a reversible character. The mechanism of increase in the exciton luminescence intensity of ZnO during the oxygen desorption has been discussed.