Large-Area Semipolar Ammonothermal GaN Substrates for High-Power LEDs

Award Information
Agency:
Department of Energy
Branch
n/a
Amount:
$150,000.00
Award Year:
2011
Program:
SBIR
Phase:
Phase I
Contract:
DE-FG02-11ER90202
Award Id:
n/a
Agency Tracking Number:
96736
Solicitation Year:
2011
Solicitation Topic Code:
08 c
Solicitation Number:
DE-FOA-0000413
Small Business Information
Soraa, Inc. (Currently Soraa)
6500 Kaiser Drive, Fremont, CA, 94555-3613
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
809425742
Principal Investigator:
Mark D'Evelyn
Dr.
(805) 683-1885
mdevelyn@soraa.com
Business Contact:
Duston Williams
Mr.
(510) 456-3678
duston.williams@soraa.com
Research Institution:
Stub




Abstract
Soraa proposes to develop low-cost, large area semipolar ammonothermal true bulk GaN substrates. Semipolar bulk GaN substrates are expected to be transformative for high power blue, green, and/or yellow LEDs, enabling high efficiency, high power density LEDs at costs below $3/kilolumen. The large cost reduction will enable widespread implementation of high-efficiency semipolar LEDs, enabling energy savings for general illumination in residential and commercial buildings of up to 1 quad/year by 2030. Semipolar crystallographic orientations of bulk GaN offer key advantages over conventional orientations for mid-spectrum light emission but are currently much too small and far too expensive to be relevant to LED manufacturing. The objectives for this Phase I project include: 1. Survey the growth properties of a range of semipolar orientations in Soraas novel high-rate SCoRA ammonothermal bulk crystal growth process, identifying at least one orientation with stable long-term growth and surface morphology characteristics and a growth rate enabling low-cost manufacturing upon scaleup. 2. Fabricate semipolar bulk GaN crystals with an area equivalent to a 1 inch diameter by means of a method that can be scaled up to 4 & quot; within two years. Soraa envisions that scale-up of the semipolar bulk GaN technology to 4 & quot; diameter, together with reduction of dislocation densities to below 104 cm-2, enabling further efficiency improvements, would be carried out during a follow-on Phase II effort

* information listed above is at the time of submission.

Agency Micro-sites


SBA logo

Department of Agriculture logo

Department of Commerce logo

Department of Defense logo

Department of Education logo

Department of Energy logo

Department of Health and Human Services logo

Department of Homeland Security logo

Department of Transportation logo

Enviromental Protection Agency logo

National Aeronautics and Space Administration logo

National Science Foundation logo
US Flag An Official Website of the United States Government