GUO Hong-ying, PAN Ding-zhen, FAN Jun-qing, et al. Characterization and Analysis on the Optical Properties of InxGa1-xN/InyGa1-yN Multiple Quantum Well Structures[J]. Chinese journal of luminescence, 2009, 30(6): 797-801.
GUO Hong-ying, PAN Ding-zhen, FAN Jun-qing, et al. Characterization and Analysis on the Optical Properties of InxGa1-xN/InyGa1-yN Multiple Quantum Well Structures[J]. Chinese journal of luminescence, 2009, 30(6): 797-801.DOI:
N multiple quantum well structures were grown on sapphire substrate by metal-organic chemical vapor deposition (MOCVD). The quantum efficiency
multi-emission peaks effects and peak-shift information were observed by temperature dependent photoluminescence (PL) spectra
selective excitation PL spectra and PL excitation spectra. The temperature dependent PL spectra showed that the intensity of the main emission peaks decreased only by a factor of 1.36 and peak position has a blue-shift when temperature increases in 30~300 K. Selective excitation PL spectra showed that every peak appeared in PL spectra is separate. The PLE result shows a small Stokes shift for GaN and barrier layer while it is larger for the well layers. A fitting method was also suggested to obtain several absorption edges simultaneously.
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references
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