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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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Luminescence spectroscopy of Eu-implanted zincblende GaN

Roqan, I.S. and O'Donnell, K.P. and Trager-Cowan, C. and Hourahine, B. and Martin, R.W. and Lorenz, K. and Alves, E. and As, D.J. and Panfilova, M. and Watson, I.M. (2008) Luminescence spectroscopy of Eu-implanted zincblende GaN. Physica Status Solidi B, 245 (1). pp. 170-173. ISSN 0370-1972

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Abstract

Cathodoluminescence (CL) and Photoluminescence (PL) of Eu-implanted zincblende-GaN (ZB-GaN:Eu) and wurtzite-GaN (W-GaN:Eu) are compared in order to investigate the optical activation of GaN by Eu. The EU3+ emission spectrum depends critically on the crystal structure of the GaN host; implantation and post-annealing at 800 degrees C partially converts implantation-damaged ZB-GaN:Eu to W-GaN:Eu. Selective excitation of PL at wavelengths below the ZB-GaN band edge reveals a new sharp emission line at 627 nm, together with a number of satellites, which we ascribe to ZB-GaN: Eu.