Spatially Inhomogeneous Impurity Distribution in ZnO Micropillars

Using ZnO a variety of micro- and nanostructures can be fabricated. We investigate hexagonal micropillars grown by high pressure pulsed laser deposition on sapphire with spatially and spectrally resolved cathodoluminescence. We demonstrate that the impurity and defect incorporation is strongly inhom...

Full description

Saved in:
Bibliographic Details
Published in:Nano letters 2004-05, Vol.4 (5), p.797-800
Main Authors: Nobis, Thomas, Kaidashev, Evgeni M, Rahm, Andreas, Lorenz, Michael, Lenzner, Jörg, Grundmann, Marius
Format: Article
Language:English
Subjects:
Cathodoluminescence, ionoluminescence
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Growth from vapor
Materials science
Methods of crystal growth
physics of crystal growth
Optical properties and condensed-matter spectroscopy and other interactions of matter with particles and radiation
Other luminescence and radiative recombination
Physics
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Using ZnO a variety of micro- and nanostructures can be fabricated. We investigate hexagonal micropillars grown by high pressure pulsed laser deposition on sapphire with spatially and spectrally resolved cathodoluminescence. We demonstrate that the impurity and defect incorporation is strongly inhomogeneous, at least under the present growth conditions, dramatically influencing the optical properties.
ISSN:1530-6984
1530-6992
DOI:10.1021/nl049889y