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Proceedings Paper

Luminescent properties of ZnO nanoparticles doped with W obtained in plasma discharge in liquid under ultrasonic cavitation
Author(s): N. A. Bulychev; M. I. Danilkin; N. Yu. Vereschagina; M. A. Kazaryan
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Paper Abstract

ZnO:W luminescent material was prepared and characterized. We compare nano-sized and bulk material composition and luminescence. Nanoparticles were prepared by a novel acoustoplasma technique (plasma discharge in a liquid at an intensive ultrasonic field above the cavitation threshold). Bulk ZnO:W was prepared by classical annealing way from the mixture of ZnO powder and H2WO4. Under excitation with a pulsed electron beam, the ZnO:W nanoparticles demonstrated very low luminescence efficiency while the bulk sample produced intensive green cathodoluminescence. The most intensive green luminescence was observed after annealing of the sample in air, which excludes a well-known mechanism involving anion vacancies. Probably, tungsten impurity tunes excitonic luminescence towards longer wavelengths, but this point requires further investigations for verification.

Paper Details

Date Published: 11 December 2019
PDF: 6 pages
Proc. SPIE 11322, XIV International Conference on Pulsed Lasers and Laser Applications, 113221S (11 December 2019); doi: 10.1117/12.2554522
Show Author Affiliations
N. A. Bulychev, P. N. Lebedev Physical Institute (Russian Federation)
Moscow Aviation Institute (National Research Univ.) (Russian Federation)
M. I. Danilkin, P. N. Lebedev Physical Institute (Russian Federation)
N. Yu. Vereschagina, P. N. Lebedev Physical Institute (Russian Federation)
M. A. Kazaryan, P. N. Lebedev Physical Institute (Russian Federation)


Published in SPIE Proceedings Vol. 11322:
XIV International Conference on Pulsed Lasers and Laser Applications
Victor F. Tarasenko; Anton V. Klimkin; Maxim V. Trigub, Editor(s)

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