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Updated: May 19, 2026

Low-energy Cathodoluminescence for (Oxy)Nitride Phosphors
Published on: November 15, 2016
Phosphor in glasses with Pb-free silicate glass powders as robust color-converting materials for white LED
Yl Kwon Lee1, Jin Seok Lee, Jong Heo
1Institute for Rare Metals & Division of Advanced Materials Engineering, Kongju National University, Cheonan, Chungnam, South Korea.
Abstract:
Phosphor-in-glass (PiG) typed robust color converters were fabricated using Pb-free silicate glasses for high-power white LED applications. SiO2-B2O3-RO(R=Ba,Zn) glass powder showed good sintering behavior and high visible transparency under the sintering condition of 750 °C for 30 min without noticeable interaction with phosphors. By simply changing the thickness of the PiG plate or mixing ratio of glass to Y3Al5O12:Ce3+ phosphor, CIE chromaticity coordinates of the LED can be easily controlled. Enhanced thermal quenching property of PiG compared to phosphor with conventional silicone resin suggests its prominent feasibility for high-power/high-brightness white LEDs.
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