Observation of enhanced defect emission and excitonic quenching from spherically indented ZnO
Date
2006-08-23
Authors
Coleman, Victoria A
Bradby, J. E.
Jagadish, C.
Phillips, M. R.
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American Institute of Physics
Abstract
The influence of spherical nanoindentation on the band edge and deep level emission of single crystal c-axis ZnO has been studied by cathodoluminescence(CL) spectroscopy and monochromatic imaging. Excitonic emission is quenched at the indent site and defect emission in the range of 450–720nm is enhanced.
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Keywords: Cathodoluminescence; Crystal defects; Crystallography; Excitons; Image analysis; Indentation; Quenching; Spectrum analysis; Zinc oxide; Cathodoluminescence (CL) spectroscopy; Emission band; Excitonic quenching; Monochromatic imaging; Single crystals
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Applied Physics Letters
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Journal article
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