EVALUATION OF HETEROJUNCTION INTERFACES USING ELECTRO BEAM ELECTROREFLECTANCE

Award Information
Agency:
Department of Defense
Branch
Defense Advanced Research Projects Agency
Amount:
$249,494.00
Award Year:
1989
Program:
SBIR
Phase:
Phase II
Contract:
n/a
Award Id:
8601
Agency Tracking Number:
8601
Solicitation Year:
n/a
Solicitation Topic Code:
n/a
Solicitation Number:
n/a
Small Business Information
301 Chesapeake Dr, Redwood City, CA, 94063
Hubzone Owned:
N
Minority Owned:
N
Woman Owned:
N
Duns:
n/a
Principal Investigator:
Dr Michael H Herman
(415) 369-4567
Business Contact:
() -
Research Institute:
n/a
Abstract
IN PHASE I, THE INITIAL CHARACTERIZATION OF ELECTRONIC STRUCTURE AT ALGAAS/GAAS INTERFACES BY ELECTRON BEAM ELECTRO-REFLECTANCE (EBER) IS PROPOSED, SPECIFICALLY FOR THE INVESTIGATION OF QUANTUM WELL AND HEMT STRUCTURES. THESE INTERFACES HAVE BEEN STUDIED BY RELATED TECHNIQUES, AND HAVE BEEN SHOWN TO POSSESS UNIQUE SPECTRAL FEATURES. NONETHELESS, BOTH FUNDAMENTAL AND APPLIED QUESTIONS REMAIN ABOUT THE PHYSICAL PARAMETERS OF THESE SYSTEMS. THE PHASE I WORK WILL DEMONSTRATE THE APPLICABILITY OF EBER TO ANALYSIS OF THESE PROBLEMS. FOR THIS PURPOSE, WE WILL EXAMINE THE ELECTRONIC LEVELS ASSOCIATED WITH SINGLE QUANTUM WELLS, USED IN LASER DEVICES, AND SINGLE HETEROJUNCTION INTERFACES, CHARACTERISTICS OF HEMT DEVICES. OUR OBJECTIVE IS TO OBSERVE AND PARAMETRIZE THE ADDITIONAL SPECTRAL FEATURES OF THESE INTERFACES, USING EBER.

* 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