Effect of cerium doping on optical and luminescent properties of Al2O3−Ce:YAG composite ceramics

Denis Yu. Kosyanov; Xin Liu; Anastasia A. Vornovskikh; Andrey A. Leonov; Wanyuan Li; Jiang Li

doi:10.1117/12.2582998

5 March 2021 Effect of cerium doping on optical and luminescent properties of Al₂O₃−Ce:YAG composite ceramics

Denis Yu. Kosyanov, Xin Liu, Anastasia A. Vornovskikh, Andrey A. Leonov, Wanyuan Li, Jiang Li

Proceedings Volume 11706, Light-Emitting Devices, Materials, and Applications XXV; 1170618 (2021) https://doi.org/10.1117/12.2582998
Event: SPIE OPTO, 2021, Online Only

Abstract

SiO₂,MgO-codoped Al₂O₃−Ce:YAG composite ceramics with different Ce³⁺ doping concentrations (0.05-0.3 at%) have been fabricated via reactive vacuum sintering, for the purpose of high power white light-emitting diodes (WLEDs). Optical and luminescence characteristics of color converters were investigated by transmittance spectra and photoluminescence examinations. It is found that WLEDs based on synthesized phosphors with 0.05-0.1 at% Ce³⁺ doping have an optimal balance between high color-rendering index, luminous efficacy and appropriate correlated color temperature values.

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Denis Yu. Kosyanov, Xin Liu, Anastasia A. Vornovskikh, Andrey A. Leonov, Wanyuan Li, and Jiang Li "Effect of cerium doping on optical and luminescent properties of Al₂O₃−Ce:YAG composite ceramics", Proc. SPIE 11706, Light-Emitting Devices, Materials, and Applications XXV, 1170618 (5 March 2021); https://doi.org/10.1117/12.2582998

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