Blue Light-Emitting Diode Phosphors Based upon Oxide, Oxyhalide, and Halide Hosts

In this article, we describe various oxide, oxyhalide, and halide phosphors that can be used in combination with blue light emitting diodes (LEDs) for lighting and display systems. Within specific host-activator combinations, we briefly discuss composition-property relationships and the potential impact upon LED system performance. In addition, some of the practical drawbacks and open issues for many of these materials are discussed, giving potential routes for future work. (C) 2012 The Electrochemical Society.