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The Strathprints institutional repository is a digital archive of University of Strathclyde's Open Access research outputs. Strathprints provides access to thousands of Open Access research papers by Strathclyde researchers, including by researchers from the European Policies Research Centre (EPRC).

EPRC is a leading institute in Europe for comparative research on public policy, with a particular focus on regional development policies. Spanning 30 European countries, EPRC research programmes have a strong emphasis on applied research and knowledge exchange, including the provision of policy advice to EU institutions and national and sub-national government authorities throughout Europe.

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Optical and structural properties of Eu-implanted InxAl1−xN

Roqan, I.S. and O'Donnell, K.P. and Martin, R.W. and Trager-Cowan, C. and Matias, V. and Vantomme, A. and Lorenz, K. and Alves, E. and Watson, I.M. (2009) Optical and structural properties of Eu-implanted InxAl1−xN. Journal of Applied Physics, 106 (8). ISSN 0021-8979

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Abstract

Off-axis implantation of 80 keV Eu ions into epitaxial c-plane InAlN/GaN bilayers confines rare-earth (RE) doping largely to the InAlN layer. Rutherford backscattering spectrometry and x-ray diffraction show good correlations between the Eu3+ emission linewidth and key structural parameters of InxAl1−xN films on GaN in the composition range near lattice matching (x ∼ 0.17). In contrast to GaN:Eu, selectively excited photoluminescence (PL) and PL excitation spectra reveal the presence of a single dominant optical center in InAlN. Eu3+ emission from In0.13Al0.87N:Eu also shows significantly less thermal quenching than GaN:Eu. InAlN films are therefore superior to GaN for RE optical doping.