title: Phosphor in glasses with Pb-free silicate glass powders as robust color-converting materials for white LED applications.
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.
authors.affiliation: Institute for Rare Metals & Division of Advanced Materials Engineering, Kongju National University, Cheonan, Chungnam, South Korea.
authors.forename: Yl Kwon
authors.initials: YK
authors.lastname: Lee
authors.forename: Jin Seok
authors.initials: JS
authors.lastname: Lee
authors.forename: Jong
authors.initials: J
authors.lastname: Heo
authors.forename: Won Bin
authors.initials: WB
authors.lastname: Im
authors.forename: Woon Jin
authors.initials: WJ
authors.lastname: Chung