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Detailed Program
| Paper Number : GL-P05 |
| Time Frame : 12:00~13:30 |
| Presentation Date : Thursday, 27, November |
| Session Name : Glass & Opto-Electronic Materials |
| Session Chair 1# : - |
| Session Chair 2# : - |
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| Improved Thermal Stability of Phosphor in Glass Varying Glass to Phosphor Mixing Ratio |
| Ms. Hyun-a Park |
| Kongju National University |
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| Recently, inorganic color converter has been studied to replace organic binders which have weak thermal and chemical durability in order to increase lifetime of high power WLED. Phosphor in glass can be fabricated by a simple mixture of glass frit and phosphor. However, conventional PiG with SiO2-B2O3-RO glass has a high sintering temperature at 750 oC[1] and thus it is difficult to use various phosphor and control chromaticity of WLED. In this study, we synthesized a low sintering temperature silicate glasses based on SiO2-P2O5-B2O3-ZnO and SiO2-B2O3-ZnO-Na2O which can be sintered at 500 oC and 550 oC, respectively the glass were mixed with various ratio of glass to Y3Al5O12: Ce3+ (YAG) yellow and CaAlSiN3:Eu2+ (CASN) red phosphors. CIE chromaticity of PiGs were varied by phosphor content. It was showed that the thermal properties of PiG was enhanced when compared to silicon resin. Thermal conductivity of PiG was measured to discuss on the improved thermal stability with the phosphor content. |
| Acknowledgements : |
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