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학술대회자료

Thermal-resistance of Phosphor in Glass (PiGs) by blue LD excitation for bio imaging application

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Since light emitting diodes (LEDs) have been widely investigated, high power LEDs and laser diodes (LD) based light source become a next generation light source in illumination and display applications. A general approach to generate white emission is combination of blue emission and yellow phosphor (YAG:Ce3+). The yellow phosphor is used for the white LEDs as a shape of film or encapsulation consisting of epoxy and phosphor. However, epoxy is not compatible material for the blue LD application due to a poor thermal stability and blackened with blue LD irradiation In order to improve these challenges, the Phosphor in Glass (PiGs) has been recently reported . In this study, we rapidly fabricated PiGs using microwave synthesis with common domestic microwave oven. The PiGs consist of a common soda-lime glasses and commercial YAG:Ce3+ phosphors. In order to characterize the effect of (1) microwave radiation energy and (2) weight ratio between glass and yellow phosphor, microscopic observation, luminescent properties and thermal measurement are investigated.

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