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Time-resolved photoluminescence (TRPL) of the blue and green LEDs, which has the same number of quantum-well (QW) pairs and the different etched depths, has been studied at room temperature. The purpose is to analyze the effect of different indium (In) content and defects density on TRPL. The carrier lifetime of radiative recombination and non-radiative for blue LED (In=0.15) is 625.0ns and 55.6ns,...
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