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Photoluminescence and Thermoluminescence Studies of LaAlO3 Perovskite Doped with Dy3+
Abstract
The preparation of LaAlO3 doped with various concentrations of Dy3+ via a solid-state reaction technique is reported. Optimum photoluminescence (PL) emission was observed for 3.0 mol.% dopant. The critical distance between the activators for the optimum PL case was 3.330 Å. PL emission peaks centered at 478 and 494 nm and at 590 and 615 nm were observed and attributed to the 4F9/2→6H15/2 and 4F9/2→6H13/2 transitions of Dy3+, respectively. The thermoluminescence glow curve shape factors for various cases indicated the existence of second-order kinetics with deeper traps with activation energies in the range of 0.44–0.46 eV.
About the Authors
R. S. Kundu
Department of Physics, Shri Shankaracharya Professional University
India
India
Bhilai
R. Shrivastava
Department of Physics, Shri Shankaracharya Professional University
India
India
Bhilai
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Review
For citations:
Kundu R.S., Shrivastava R. Photoluminescence and Thermoluminescence Studies of LaAlO3 Perovskite Doped with Dy3+. Zhurnal Prikladnoii Spektroskopii. 2026;93(2):286-1-286-6.
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