Origin of the blue luminescence band in zirconium oxide

Autor:	A. P. Eliseev, A. V. Zablotskii, Timofey V. Perevalov, D. V. Gulyaev, V. Sh. Aliev, K. S. Zhuravlev, Vladimir A. Gritsenko
Rok vydání:	2015
Předmět:	Photoluminescence Materials science Solid-state physics Analytical chemistry chemistry.chemical_element Condensed Matter Physics Oxygen Spectral line Electronic Optical and Magnetic Materials chemistry Photoluminescence excitation Luminescence Absorption (electromagnetic radiation) Excitation
Zdroj:	Physics of the Solid State. 57:1347-1351
ISSN:	1090-6460 1063-7834
Popis:	The photoluminescence excitation and steady-state photoluminescence spectra of nonstoichiometric zirconium oxide films with a high concentration of oxygen vacancies have been investigated. A band with energy of about 2.7 eV in the blue spectral region dominates in photoluminescence spectra of prepared films. The photoluminescence intensity of this band increases as the depletion of zirconium oxide films with oxygen increases. The excitation maximum of the blue photoluminescence band corresponds to energy of 5.2 eV. It has been established by quantum-chemical modeling that the optical absorption peak of the oxygen vacancy in crystalline zirconium oxide is located at energy of 5.1 eV. The analysis of the results has demonstrated that the blue photoluminescence band at 2.7 eV with the excitation peak near 5.2 eV is caused by oxygen vacancies in zirconium oxide.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::36d8e6f8e441cb69797eae0cb3c1bc0a https://doi.org/10.1134/s1063783415070148 Zobrazit plný text záznamu Full text from SpringerLink