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PL spectra of after rapid thermal annealing at various temperatures.
PL intensity as a function of annealing temperature of QW with indium content of 35% (a), 38% (b), and 42% (c). The PL scale is such as the different graphs can be compared.
PL spectra of QW with indium content of 35%, 38%, and 42% after annealing at optimum temperatures of 675, 650, and , respectively. Solid lines correspond to samples grown at and the dashed line is for the sample grown at .
PL spectra of 3 QWs with 42% of indium after annealing at . The nitrogen content are 4%, 3%, and 2.5% while the QW thickness are and for the sample with the lower N content.
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