Abstract
In2O3−ZnO one-dimensional nanosized heterostructures constructed by In2O3 quadrangular columns and ZnO hexagonal disks have been fabricated by thermal chemical vapor transport and condensation with Au catalysts, and the cathodeluminescence of the as-prepared heterostructures are characterized. It was found that there is basically no luminescence emission from In2O3 quadrangular columns, while there is the intense luminescence emission from ZnO hexagonal disks, which are attributed to the whispering gallery mode from the optical resonator of ZnO hexagonal disks.
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