Luminescence spectroscopy of excitons in Zn1−xNixO oxides

The paper presents the results of the study of two narrow luminescence lines I1 and I2 at the energies of 3.339 and 3.393eV respectively in solid-state solutions Zn1−xNixO. The method of time-resolved luminescence spectroscopy with sub-nanosecond time resolution upon XUV excitation allows us to make...

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Published inPhysica. B, Condensed matter Vol. 536; pp. 572 - 575
Main Authors Churmanov, V.N., Sokolov, V.I., Pustovarov, V.A., Gruzdev, N.B., Ivanov, V.Yu
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.05.2018
Subjects
Excitons
NiO
X-ray induced luminescence
X-ray induced luminescence
NiO
Excitons
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Summary:The paper presents the results of the study of two narrow luminescence lines I1 and I2 at the energies of 3.339 and 3.393eV respectively in solid-state solutions Zn1−xNixO. The method of time-resolved luminescence spectroscopy with sub-nanosecond time resolution upon XUV excitation allows us to make a comparative analysis of nature of discovered lines. We consider the origin of narrow lines I1 and I2 as a radiative recombination of different excitons in Zn1−xNixO: I1-line is Wannier-Mott exciton, I2-line – p-d charge-transfer exciton. Noticeable differences of Wannier-Mott and p-d exciton properties are thoroughly discussed.
ISSN:0921-4526
1873-2135
DOI:10.1016/j.physb.2017.10.122