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Paul M. Sweeney, C. M. Harder, M. C. Cheung, A. N. Cartwright Department of Electrical Engineering and Laboratory of Applied Spectroscopic Evaluation David P. Bour*, Michael Kneissl Xerox-Palo Alto Research Center, Electronic Materials Laboratory Frederick H. Long Litton Airtron M. E. Aumer, S. F. LeBoeuf, and S. M. Bedair North Carolina State University, Department of Electrical and Computer Engineering *Now at LumiLeds Time resolved and CW excitation dependent photoluminescence measurements of InGaN and AlInGaN quantum wells are presented. Contributions of piezoelectricity, phase segregation, and spontaneous polarization on the emission efficiency of III-N heterostructures are discussed.
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