期刊
OPTICS EXPRESS
卷 23, 期 3, 页码 A43-A50出版社
OPTICAL SOC AMER
DOI: 10.1364/OE.23.000A43
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资金
- Ministry of Trade, industry & Energy (MI, Korea) [10044203]
- INHA University Research Grant [INHA-50269]
The transmittance of phosphor-in-glass (PIG) color converter material was studied as a factor affecting the luminescence properties of light emitting diode packaging; it is closely related to the residual pores of sintered glass. In this study, the correlation between porosity and optical properties of the glass and PIG plates was investigated. The transmittance, luminescence properties, and porosity were measured by UV-visible spectrometer, integrating sphere and scanning electron microscope, respectively. Transmittance of the sintered glass plate and the luminous efficacy of the PIG plate both increase with decreased porosity, while the light scattering coefficient decreases. Luminescence properties such as emission intensity and color coordinates are also influenced by transmittance of the PIG plate. (C) 2015 Optical Society of America
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