Translator Disclaimer
4 March 2013 Performance enhancement of high-temperature glass-based phosphor-converted white light-emitting diodes employing SiO2
Author Affiliations +
Abstract
It was reported that sol-gel processed SiO2-coating effects of Ce3+: YAG phosphor on and thermal reliability enhancements in terms of quantum efficiency and optical characteristics. This study found improved light extraction efficiencies of glass phosphor, and increased quantum efficiency 3.95% of SGCeYDG in comparison to un-coated CeYDLTG. In the thermal reliability tests, Lumen degradation and chromaticity shift (ΔE) in the SGCeYDG thermally agd at 150, 250, 350, and 450°C, respectively, are also presented and compared with those of CeYDG. The results clearly demonstrated that the SGCeYDG exhibited better thermal stability on lumen degradation, and chromaticity shift than CeYDG’s. The navel high performance thermal-stable glass has been essentially critical to the application areas of LED modules where high-power leading high-operation-temperature and absolute thermal reliability are required for developing the nextgeneration solid-state lighting industry.
© (2013) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Chun-Chin Tsai, Cheng-Feng Yue, Wei-Chih Cheng, Shi-Sheng Hu, Yi-Cheng Hsu, Jyun-Sian Liao, and Wood-Hi Cheng "Performance enhancement of high-temperature glass-based phosphor-converted white light-emitting diodes employing SiO2", Proc. SPIE 8641, Light-Emitting Diodes: Materials, Devices, and Applications for Solid State Lighting XVII, 86411T (4 March 2013); https://doi.org/10.1117/12.2003097
PROCEEDINGS
7 PAGES


SHARE
Advertisement
Advertisement
RELATED CONTENT

Optical fiber reliability models
Proceedings of SPIE (September 07 1993)
Obtaining CdSexS1-x precipitates in sol-gel matrices
Proceedings of SPIE (October 31 1990)
Indentation experiments on silica optical fibers
Proceedings of SPIE (January 31 1991)
Fluorescent thin gel films using organic dyes and pigments
Proceedings of SPIE (October 01 1997)

Back to Top