On the Temperature Dependent Excitation and Reflection Spectra of Ln3Al5O12:Ce3+ Ceramics (Ln = Y, Lu) for White LEDs
Read full paper at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=52816#.VKnykMnQrzE Author(s) Thomas Jansen , Thomas Jüstel Affiliation(s) Department of Chemical Engineering, Münster University of Applied Sciences, Steinfurt, Germany . ABSTRACT Yttrium aluminum garnet (YAG) and Lutetium aluminum garnet (LuAG) doped with Ce 3+ are widely applied phosphor powders or ceramics for the conversion of blue into green to yellow light in the rapidly expanding market of white light emitting high power LEDs. Surprisingly, the temperature dependent reflection and excitation spectra of these well-established materials have not been investigated until today. In this work, we report the temperature dep...