Development of White-Light Emitting Active Layers in Nitride-Based Heterostructures for Phosphorless Solid-State Lighting
Investigating Organization
University of California, San Diego
Principal Investigator(s)
Ms. Jan Talbot, Dr. Kailash Mishra
Subcontractor
OSRAM Sylvania
Funding Source
Building Technologies Program/NETL
Award
DOE Share: $955,656; Contractor Share: $245,273
Contract Period
09/28/04 - 12/31/07
The main objective of this collaboration between UC San Diego (PI: Prof. Jan Talbot) and OSRAM SYLVANIA (Dr. K. Mishra) was to develop a new LED architecture using thin films of nitride-based luminescent semiconductor alloys of GaN, AlN, and InN, and suitably chosen activator ions to produce white light. The activator ions consisted of one or two types of ions that, together and with band edge emission from the alloy, will yield a superposition of emission spectra from the individual activator ions and lead to a white-light emitter with high efficacy and color rendering index.