Hydrothermal synthesis and photoluminescence properties of nano-crystalline GdBO3:Eu phosphor |
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| Authors: | Taehyung Kim |
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| Affiliation: | School of Materials Science and Engineering, Seoul National University, Seoul 151-744, Republic of Korea |
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| Abstract: | Nano-crystalline GdBO3:Eu3+ was prepared by a hydrothermal method and the effects of some processing variables such as pH, temperature were investigated. The as-synthesized powders were spherical shaped agglomerates of nanoparticles. The luminescent properties were compared with samples synthesized by conventional solid-state reaction method. Both the photoluminescence intensity and chromaticity were improved and a red-shift in the CT band was observed for the hydrothermally synthesized samples. Possible mechanisms of phase formation were investigated and explanations for the changes in optical properties are proposed. |
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| Keywords: | A. Nanostructures A. Optical materials B. Chemical synthesis D. Luminescence |
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