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The Strathprints institutional repository is a digital archive of University of Strathclyde research outputs.

Strathprints serves world leading Open Access research by the University of Strathclyde, including research by the Strathclyde Institute of Pharmacy and Biomedical Sciences (SIPBS), where research centres such as the Industrial Biotechnology Innovation Centre (IBioIC), the Cancer Research UK Formulation Unit, SeaBioTech and the Centre for Biophotonics are based.

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Electron probe microanalysis of rare earth doped gallium nitride light emitters

Dalmasso, S and Martin, R W and Edwards, P R and O'Donnell, K P and Pipeleers, B and Vantomme, A and Nakanishi, Y and Wakahara, A and Yoshida, A and , RENiBEI Network (2003) Electron probe microanalysis of rare earth doped gallium nitride light emitters. Journal of Physics: Conference Series, 180. pp. 555-558. ISSN 1742-6596

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Abstract

Rare earth doped GaN structures offer potential for optical devices emitting in the visible spectral region. Doping with europium and erbium produces characteristic sharp red and green emission lines respectively, due to intra-4f(n) shell electron transitions. We describe studies of Eu- and Er- ion implanted MOCVD grown GaN epilayers on sapphire using an electron probe micro-analyser modified to allow cathodoluminescence (CL) spectroscopy. Wavelength dispersive X-ray analysis is shown to be an accurate technique for quantifying rare earth concentrations in GaN, down to similar to0.06 atomic % and is complemented by CL acquired at the same time from the same microscopic region of sample.