Picture of wind turbine against blue sky

Open Access research with a real impact...

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

The Energy Systems Research Unit (ESRU) within Strathclyde's Department of Mechanical and Aerospace Engineering is producing Open Access research that can help society deploy and optimise renewable energy systems, such as wind turbine technology.

Explore wind turbine research in Strathprints

Explore all of Strathclyde's Open Access research content

Defect evolution and interplay in n-type InN

Rauch, Christian and Tuomisto, Filip and Vilalta-Clemente, Arantxa and Lacroix, Bertrand and Ruterana, Pierre and Kraeusel, Simon and Hourahine, Benjamin and Schaff, William J. (2012) Defect evolution and interplay in n-type InN. Applied Physics Letters, 100 (9). ISSN 0003-6951

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

Abstract

The nature and interplay of intrinsic point and extended defects in n-type Si-doped InN epilayers with free carrier concentrations up to 6.6×1020 cm−3 are studied using positron annihilation spectroscopy and transmission electron microscopy and compared to results from undoped irradiated films. In as-grown Si-doped samples, mixed In-N vacancy complexes (VIn-VN) are the dominant III-sublattice related vacancy defects. An increase in the number of VN in these complexes toward the interface suggests high concentrations of additional isolated VN and VN-clusters near the GaN buffer layer and coincides with elevated dislocation densities in that area.