@inproceedings{909bc6a7b28b453da7f4dd8e9dd6c83b,
title = "High-thermal-stability white light-emitting-diodes employing broadband glass phosphor",
abstract = "We report the high-thermal-stability white light-emitting-diodes (WLEDs) employing broadband glass phosphors. The broadband glass phosphors were fabricated by sintering the mixture of multiple phosphors and SiO2-based glass (SiO2-Na2O-Al2O3-CaO) at 680?. Y3Al5O12:Ce3+ (YAG), Lu3Al5O12:Ce3+ (LuAG), and CaAlSiN3: Eu2+ (Nitride) phosphor crystals were chosen as the yellow, green, and red emitters of the glass phosphors, respectively. The results showed that the broadband phosphors exhibited high quantum-yield of 54% and color-rendering index (CRI) of 90. The lumen degradation, chromaticity shift, and transmittance loss in the broadband glass-based WLEDs under thermal aging temperature at 150, 250, 350 and 450? were also presented and compared with those of silicone-based WLEDs under thermal aging temperature at 150 and 250°C. The results demonstrated that the broadband glass-based WLEDs exhibited better thermal stability in lumen degradation, chromaticity shift, and transmittance loss than the silicone-based WLEDs. The excellent thermal stability of the broadband glass-based WLEDs with high CRI is essentially beneficial to the applications for next-generation solid-state indoor lighting, especially in the area where high power and absolute reliability are required.",
author = "Cheng, {Wood Hi} and Chen, {Li Yin} and Cheng, {Wei Chih}",
year = "2014",
doi = "10.1117/12.2065510",
language = "English",
series = "Proceedings of SPIE - The International Society for Optical Engineering",
publisher = "SPIE",
editor = "Jianzhong Jiao and Kane, {Matthew H.} and Nikolaus Dietz and Jian-Jang Huang",
booktitle = "Thirteenth International Conference on Solid State Lighting",
address = "United States",
note = "null ; Conference date: 20-08-2014 Through 21-08-2014",
}