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J Am Chem Soc. 2009 Feb 18;131(6):2125-7. doi: 10.1021/ja8092339.

Imaging single ZnO vertical nanowire laser cavities using UV-laser scanning confocal microscopy.

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1
Department of Chemistry, University of California, Berkeley, California 94720, USA.

Abstract

We report the fabrication and optical characterization of individual ZnO vertical nanowire laser cavities. Dilute nanowire arrays with interwire spacing >10 microm were produced by a modified chemical vapor transport (CVT) method yielding an ideal platform for single nanowire imaging and spectroscopy. Lasing characteristics of a single vertical nanowire are presented, as well as high-resolution photoluminescence imaging by UV-laser scanning confocal microscopy. In addition, three-dimensional (3D) mapping of the photoluminescence emission performed in both planar and vertical dimensions demonstrates height-selective imaging useful for vertical nanowires and heteronanostructures emerging in the field of optoelectronics and nanophotonics.

PMID:
19175311
DOI:
10.1021/ja8092339
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