Open AccessHIGH-EFFICIENCY NITRIDE-BASED SOLID-STATE LIGHTING
Author(s) -
P. Fini,
Shuji Nakamura
Publication year - 2002
Language(s) - English
Resource type - Reports
DOI - 10.2172/808141
Subject(s) - light emitting diode , solid state lighting , scope (computer science) , solid state , optoelectronics , nitride , materials science , characterization (materials science) , diode , luminous flux , computer science , laser , engineering physics , environmental science , optics , nanotechnology , engineering , physics , light source , layer (electronics) , programming language
In this semiannual report we summarize the progress obtained in the first six months with the support of DoE contract No.DE-FC26-01NT41203, entitled ''High-Efficiency Nitride-Based Solid-State Lighting''. The two teams, from the University of California at Santa Barbara (Principle Investigator: Dr. Shuji Nakamura) and Rensselaer Polytechnic Institute (led by Dr. N. Narendran), are pursuing the goals of this contract from thin film growth, characterization, and packaging standpoints. The UCSB team has made significant progress in the development of GaN vertical cavity surface-emitting lasers (VCSELs) as well as light-emitting diodes (LEDs) with AlGaN active regions emitting in the ultraviolet (UV). The Rensselaer team has developed target specifications for some of the key parameters for the proposed solid-state lighting system, including a luminous flux requirement matrix for various lighting applications, optimal spectral power distributions, and the performance characteristics of currently available commercial LEDs for eventual comparisons to the devices developed in the scope of this project