Luminescence efficiency of Sm3+ ions in hafnia added lithium silicate glass system-the impact of Au0 particles

P. Pavani Koteswari Devi,Valluri Ravi Kumar,A. Venkata Sekhar,A. Siva Sesha Reddy,N. Venkatramaiah,V. Ravi Kumar,N. Veeraiah

Journal of Non-Crystalline Solids（2022）

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摘要

•Li2O-HfO2-SiO2 glasses with fixed Sm2O3 and varied content of Au2O3 were prepared.•OA spectra exhibited a broad band in the visible region due to SPR of Au0 particles.•PL spectra of the glasses containing Au0 MPs showed a wide (sp → d) emission band.•PL spectra of Sm3+ doped glasses revealed bright orange and red emission bands.•Role of Au0 particles on improving red emission efficiency of Sm3+ ions was discussed.

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关键词

Li2O-HfO2-SiO2-Sm2O3 glasses,Au0 metallic particles,Photoluminescence,Energy transfer efficiency

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