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Phase Separation in InGaN/GaN Multiple Quantum Wells
Published online by Cambridge University Press: 10 February 2011
Abstract
Evidence is presented for phase separation in In0.27Ga0.73N/GaN multiple quantum wells (MQW's). After annealing for 4 min at a temperature of 1100 °C, the absorption threshold at 2.95 eV is replaced by a broad peak at 2.65 eV. This peak is attributed to the formation of Inrich InGaN phases in the active region. X-ray diffraction measurements show a shift in the diffraction peaks toward GaN, consistent with the formation of an In-poor phase.
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- Copyright © Materials Research Society 1998
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