Ceramic Phosphors for Light Conversion in LEDs

被引:144
|
作者
Raukas, M. [1 ]
Kelso, J. [1 ]
Zheng, Y. [1 ]
Bergenek, K. [2 ]
Eisert, D. [3 ]
Linkov, A. [3 ]
Jermann, F. [4 ]
机构
[1] OSRAM SYLVANIA Corp Technol, Cent Res, Beverly, MA 01915 USA
[2] OSRAM Corp Technol, SSL Res Ctr, D-93049 Regensburg, Germany
[3] OSRAM Opto Semicond, D-93055 Regensburg, Germany
[4] OSRAM Corp Technol, D-86830 Schwabmunchen, Germany
关键词
LUMINESCENCE; LASER;
D O I
10.1149/2.023302jss
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
In the present article we briefly review some materials research aspects related to ceramic phosphors and discuss both typical characteristics as well as unique features of such optical converters. Devices with more efficiency and/or higher luminous flux that are based on converting the pump light crucially enable the use of LEDs in white and single color illumination schemes for many applications. Advantages of generating white light with ceramics versus powder-in-silicone are discussed. High performance of single color conversion LEDs in terms of efficacy and external quantum efficiency for the visible region boost the output in data or home cinema projection and automotive signaling but more applications are appearing. (C) 2012 The Electrochemical Society.
引用
收藏
页码:R3168 / R3176
页数:9
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