Photoluminescence of rare-earth/transition metal-doped transparent/translucent polycrystalline Al2O3 ceramics: A review |
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Authors: | Róbert Klement Katarína Drdlíková Daniel Drdlík Karel Maca |
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Affiliation: | 1. FunGlass, Alexander Dubček University of Trenčín, Trenčín, Slovak Republic;2. CEITEC BUT, Brno University of Technology, Brno, Czech Republic |
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Abstract: | Transparent alumina doped with rare-earth or transition metal oxides represents a group of materials suitable for optical applications. Because of the birefringence of alumina, their preparation is demanding on the quality of starting materials, their advanced shaping, and pressure-assisted sintering. Spark plasma sintering and hot isostatic pressing have proven at achieving pore-free fine microstructures exhibiting high in-line transmission and a sufficient intensity of emitted light. The present review aims to summarize the results published on this topic, to compare them and on this base to propose other possible and/or appropriate approaches to future. |
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Keywords: | alumina doping photoluminescence processing transparency |
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