Phosphor in glasses with Pb-free silicate glass powders as robust color-converting materials for white LED applications
- Journal
- Opt. Lett.
- Status
- published
- Vol
- 37
- Page
- 3276-3278
- Year
- 2012
- Link
- https://doi.org/10.1364/OL.37.003276 941회 연결
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)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+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.