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Proceedings Paper

Optical studies on InxGa1-xN quantum disks
Author(s): Mark J. Holmes; Young S. Park; Xu Wang; Christopher C. S. Chan; Anas F. Jarjour; Jun Luo; Jamie H. Warner; H. A. R. El-Ella; R. A. Oliver; Robert A. Taylor
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Paper Abstract

Time integrated and time resolved microphotoluminescence studies have been performed on InxGa1-xN quantum disks embedded in GaN nanocolumns. The results are analysed in context of current theories regarding an inhomogeneous strain distribution in the disk, which is theorised to generate lateral charge separation in the disks by strain induced band bending, an inhomogeneous polarization field distribution, and Fermi surface pinning. It is concluded that no lateral separation of carriers occurs in the quantum discs under investigation.

Paper Details

Date Published: 21 February 2011
PDF: 8 pages
Proc. SPIE 7937, Ultrafast Phenomena in Semiconductors and Nanostructure Materials XV, 793713 (21 February 2011); doi: 10.1117/12.877149
Show Author Affiliations
Mark J. Holmes, Univ. of Oxford (United Kingdom)
Young S. Park, Univ. of Oxford (United Kingdom)
Pohang Univ. of Science and Technology (Korea, Republic of)
Xu Wang, Univ. of Oxford (United Kingdom)
Christopher C. S. Chan, Univ. of Oxford (United Kingdom)
Anas F. Jarjour, Univ. of Oxford (United Kingdom)
Jun Luo, Univ. of Oxford (United Kingdom)
Jamie H. Warner, Univ. of Oxford (United Kingdom)
H. A. R. El-Ella, Univ. of Cambridge (United Kingdom)
R. A. Oliver, Univ. of Cambridge (United Kingdom)
Robert A. Taylor, Univ. of Oxford (United Kingdom)


Published in SPIE Proceedings Vol. 7937:
Ultrafast Phenomena in Semiconductors and Nanostructure Materials XV
Kong-Thon Tsen; Jin-Joo Song; Markus Betz; Abdulhakem Y. Elezzabi, Editor(s)

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