Journal
PHYSICA SCRIPTA
Volume T157, Issue -, Pages -Publisher
IOP Publishing Ltd
DOI: 10.1088/0031-8949/2013/T157/014056
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Funding
- Ministry of Education and Science of the Republic of Serbia [172056, 171022]
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Rare earth (RE) oxides are important hosts for the luminescence of RE activators with numerous practical applications in light-emitting devices. In this work, we investigated the possibility for Gd2O3: Eu3+ usage in phosphor thermometry by observing the temperature changes of trivalent europium ion transitions from the D-5(0) and D-5(1) energy levels to the ground-state levels. A set of three samples of Eu3+-doped Gd2O3 (1, 5 and 10 at.% Eu3+) was produced via combustion synthesis. The sample crystalline structure is confirmed by XRD measurements. The intensity ratio of the two emission lines was studied as a function of temperature in the temperature range 300-800 K, and lifetime was measured in the interval 10-800 K. All three Gd2O3: Eu3+ samples proved to have good potential for the development of thermographic phosphors.
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