Effect of induced crystallization in rare-earth doped lithium borate glass |
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Affiliation: | 1. Department of Applied Sciences, ABES Institute of Technology, Ghaziabad 201009, UP, India;2. School of Physics & Materials Science, Thapar University, Patiala 147004, Punjab, India |
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Abstract: | Rare-earth doped borate glasses and glass ceramics are investigated for their potential as photon converters. Thermal processing of the as-made glass results in the formation of nanocrystals therein. For optical activation, the glasses are doped with Eu3+ and Tb3+, both enabling an intense emission under ultraviolet excitation. Differential scanning calorimetry and X-ray diffraction are applied to analyze the crystallization behavior. Compared to the undoped glass, the glass transition temperature as well as the crystallization temperature are increased with Eu3+ doping. Upon thermal processing of the as-made glasses, the transmittance is significantly reduced. Preliminary photoluminescence quantum efficiency measurements yield lower values for the glass ceramics. |
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Keywords: | Photon conversion Borate glasses Glass ceramics Rare-earth ion doping Crystallization |
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