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Experimental Analysis of the Spontaneous Polarization Field in GaN by UHV-cathodoluminescence
Published online by Cambridge University Press: 01 February 2011
Abstract
Cathodoluminescence spectra of GaInN quantum well structures show a strong change of intensity and a emission energy shift during electron beam irradiation. Measurements on samples with quantum well positions varying in depth show, that the spontaneous field, witch is usually screened by surface charges, penetrates the sample in a timescale of minutes and reduces the quantum confined Stark effect.
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- Copyright © Materials Research Society 2007
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