R. Xia et al., Spectrally resolved electroluminescence microscopy and mu-electroluminescence investigation of GaN-based LEDs, J CRYST GR, 230(3-4), 2001, pp. 467-472
We have studied the luminescence properties of GaN LEDs by electroluminesce
nce microscopy (ELM) and micro-electroluminescence (mu -EL) spectroscopy. S
patial inhomogeneity in the deep level region of the spectra is observed in
spectrally resolved ELM images. Room temperature mu -EL spectra measured f
rom 5 x 5 mum(2) regions show anticorrelation of the defect-related recombi
nation (E = 1.95-2.45 eV) with the band-edge emission (E = 3.18 eV). (C) 20
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