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PL spectra of Er doped GaN covering a broad spectral range from UV to IR for at (a) and (b) .
Comparison of the PL spectra of the IR emission in Er doped GaN for between 10 and .
Integrated PL emission intensity of the emission of Er doped GaN between 10 and for . The inset is an Arrhenius plot of the integrated PL intensity of the emission.
Comparison of the band edge emission of undoped and Er doped GaN at (a) and (b) for . The inset is the temporal response of the emission intensity in Er doped GaN at .
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