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- W2108884468 abstract "Application of Monte Carlo simulation of exciton (carrier) hopping for the analysis of the photolumines- cence (PL) temperature behavior in In0.2Ga0.8N/GaN multiple is reported. The PL linewidth and peak position measured in the 10-300 K range exhibited a W-shaped and S-shaped temperature be- havior, respectively. The W-shaped linewidth dependence was fitted with the results of Monte Carlo simulation, which involved phonon-assisted exciton hopping through energy states confined in the band potential fluctuation minima. The simulation yielded the values of the standard deviation for potential fluctuations within In-rich regions (31 meV), dispersion of the average exciton energy in different regions (29 meV), and the temperature dependence of the band gap, which was found to be in a fair agreement with the photoreflectance data. Our results, which infer in-plane motion of localized excitons within the wells, are consistent with the model of large In-rich regions (segmented wells or quantum discs) with band potential fluctuations inside these regions." @default.
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- W2108884468 date "2005-04-11" @default.
- W2108884468 modified "2023-09-28" @default.
- W2108884468 title "Photoluminescence temperature behavior and Monte Carlo simulation of exciton hopping in InGaN multiple quantum wells" @default.
- W2108884468 doi "https://doi.org/10.1002/pssc.200461338" @default.
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