Picture of smart phone in human hand

World leading smartphone and mobile technology research at Strathclyde...

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 University of Strathclyde researchers, including by Strathclyde researchers from the Department of Computer & Information Sciences involved in researching exciting new applications for mobile and smartphone technology. But the transformative application of mobile technologies is also the focus of research within disciplines as diverse as Electronic & Electrical Engineering, Marketing, Human Resource Management and Biomedical Enginering, among others.

Explore Strathclyde's Open Access research on smartphone technology now...

Raman scattering and cathodoluminescence characterization of near lattice-matched InxAl1-xN epilayers

Cusco, R. and Pastor, D. and Hernandez, S. and Artus, L. and Martinez, O. and Jimenez, J. and Martin, R.W. and O'Donnell, K.P. and Watson, I.M. (2008) Raman scattering and cathodoluminescence characterization of near lattice-matched InxAl1-xN epilayers. Semiconductor Science and Technology, 23 (10). 105002-1-105002-4. ISSN 0268-1242

Full text not available in this repository. Request a copy from the Strathclyde author

Abstract

We present a Raman scattering and cathodoluminescence study of a set of InxAl1-xN/GaN epilayers with InN fractions around the lattice-matched composition. We observed the A(1)(LO) and InN-like E-2 modes of the alloy, whose frequencies are in good agreement with theoretical predictions, but we were unable to detect the AlN-like E-2 mode. The InN-like E2 mode did not exhibit noticeable frequency shifts in the studied samples. This is explained by the presence of residual strain in the pseudomorphic InxAl1-xN films. A luminescence peak that shifts to lower energies with an increasing InN fraction was observed at energies above the band edge of the GaN substrate. The cathodoluminescence peak energy is lower than expected, indicating a large band-gap bowing in these alloy layers.