Picture of athlete cycling

Open Access research with a real impact on health...

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 Physical Activity for Health Group based within the School of Psychological Sciences & Health. Research here seeks to better understand how and why physical activity improves health, gain a better understanding of the amount, intensity, and type of physical activity needed for health benefits, and evaluate the effect of interventions to promote physical activity.

Explore open research content by Physical Activity for Health...

Fabrication and spectroscopy of GaN microcavities made by epitaxial lift-off

Xiong, C. and Rizzi, F. and Bejtka, K. and Edwards, P. R. and Gu, E. and Dawson, M. D. and Martin, R. W. and Watson, I. M. (2010) Fabrication and spectroscopy of GaN microcavities made by epitaxial lift-off. Superlattices and Microstructures, 47 (1). pp. 129-133.

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

Abstract

A novel epitaxial lift-off process for III-nitrides, involving selective removal of a sacrificial (Al, In)N layer in a hot nitric acid etchant, is reported. This was applied to the fabrication of 1−λ GaN planar microcavities bounded by two dielectric DBRs, starting from epitaxial GaN-(Al, In)N-GaN trilayers grown on free-standing GaN or high-quality GaN template material. An optically smooth surface was retained on the GaN surface exposed to the nitric acid etch, with root mean square roughness values as low as 2 nm over 8 μm×8 μm areas. Photoluminescence and reflectivity spectra were recorded from completed microcavities, and the latter showed clear dips in the region of 3.5 eV.