Plasmon-enhanced photoluminescence from TiO2 and TeO2 thin films doped by Eu3+ for optoelectronic applications - Publication - Bridge of Knowledge

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Plasmon-enhanced photoluminescence from TiO2 and TeO2 thin films doped by Eu3+ for optoelectronic applications

Abstract

In this work we study the luminescence properties of europium-doped titanium dioxide and tellurium oxide thin films enhanced by gold plasmonic nanostructures. We propose a new type of plasmon structure with an ultrathin dielectric film between plasmonic platform and luminescent material. Plasmonic platforms were manufactured through thermal annealing of the gold thin film. Thermal dewetting of gold film results in spherical gold nanostructures with average dimensions of 50 nm. Both, luminescent TiO2:Eu and TeO2:Eu films were deposited by RF magnetron sputtering from mosaic targets. The morphology of the gold nanostructures was investigated by SEM and TEM, while the composition of oxides film was analyzed by XPS. Luminescence properties were studied on the basis of excitation and emission spectra. The experiments show that the additional dielectric layer enhances the luminescence intensity. Such structures could be potential candidates as phosphors in white LEDs.

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DOI:
Digital Object Identifier (open in new tab) 10.3762/bjnano.12.94
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Category:
Articles
Type:
artykuły w czasopismach
Published in:
Beilstein Journal of Nanotechnology no. 12, pages 1271 - 1278,
ISSN: 2190-4286
Language:
English
Publication year:
2021
Bibliographic description:
Łapiński M., Czubek J., Drozdowska K., Synak A., Sadowski W., Kościelska B.: Plasmon-enhanced photoluminescence from TiO2 and TeO2 thin films doped by Eu3+ for optoelectronic applications// Beilstein Journal of Nanotechnology -Vol. 12, (2021), s.1271-1278
DOI:
Digital Object Identifier (open in new tab) 10.3762/bjnano.12.94
Verified by:
Gdańsk University of Technology

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