Ceramic Phosphors for Light Conversion in LEDs

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 c...

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Bibliographic Details
Published in:ECS journal of solid state science and technology 2013-01, Vol.2 (2), p.R3168-R3176
Main Authors: Raukas, M., Kelso, J., Zheng, Y., Bergenek, K., Eisert, D., Linkov, A., Jermann, F.
Format: Article
Language:English
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Summary: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.
ISSN:2162-8769
2162-8777
DOI:10.1149/2.023302jss