Towards a novel broadband spectrally dynamic solid state light source

David B. Nicol, Shalini Gupta, Nola Li, Ali Asghar, Elton Graugnard, Chris Summers, Ian T. Ferguson

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

1 Scopus citations

Abstract

The developments of two major components of a three terminal dual wavelength LED for excitation of multiple phosphors are described. Such a configuration will be novel Broadband Spectrally Dynamic Light Emitting Diode (BSDLED). First, work towards a functional tunnel junction in the GaN system is discussed. The developments of p+ and n+ GaN layers are specifically discussed in relation to their use in a buried current spreading contact layer. Second, the analysis of several phosphors and their application in a spectrally dynamic source is explored. The response to multiple wavelengths of the phosphors is analyzed to create a light source that can be tuned in "real time" to a wide range of correlated color temperatures.

Original languageEnglish
Title of host publicationMaterials Research Society Symposium Proceedings
Pages19-26
Number of pages8
StatePublished - 2006
Event2005 Materials Research Society Fall Meeting - Boston, MA, United States
Duration: 28 Nov 20052 Dec 2005

Publication series

NameMaterials Research Society Symposium Proceedings
Volume892
ISSN (Print)0272-9172

Conference

Conference2005 Materials Research Society Fall Meeting
Country/TerritoryUnited States
CityBoston, MA
Period28/11/052/12/05

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