Journal
APPLIED PHYSICS LETTERS
Volume 83, Issue 21, Pages 4414-4416Publisher
AIP Publishing
DOI: 10.1063/1.1629788
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Two-dimensional micrometer-sized single-crystalline ZnO thin nanosheets were achieved on a large scale, in which Zn thin nanosheets (precursor) were first grown via a thermal decomposition and reduction of the starting ZnS powder, and then converted to the ZnO nanosheets via a simple oxidation process. The ZnO nanosheets, growing along [100] or [010] direction and enclosed by +/- (001) facets, have lateral dimensions up to several hundreds of microns, and thicknesses of 30-70 nm. Both room-temperature cathodoluminescence and photoluminescence measurements reveal that the present ZnO nanosheets have visible emission bands ranging from the green to red. (C) 2003 American Institute of Physics.
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