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- W2379936054 abstract "Comb-like ZnO sub-micrometer structures were successfully synthesized on Si(100) substrates though thermal evaporation of Zn power at a relatively low temperature(460 ℃) without any catalyst.The structures,morphologies and optical properties of ZnO samples were investigated by X-ray diffraction(XRD),field emission scanning electron microscopy(SEM),transmission electron microscope(TEM) and photoluminescence spectra(PL) at a room temperature.The results show that the synthesized ZnO has single crystal structure with comb-like morphology and the comb's teeth with uniform diameter and length has grown on Zn-(0001) polar surface of ZnO nanosheets.In addition,the teeth of the comb are thicker and longer,while PL green emission at 500 nm is weaker when they grow under the opposite flow direction compared with those samples growing in same flow direction for Zn vapor and working gas,revealing that the oxygen vacancy defects in the samples growing in the opposite flow direction are much lower than that in those growing in same flow direction.Room temperature photoluminescence spectra show that the ultraviolet emission of the sample is dramatically enhanced,while the green emission is declined after the surface modification of Au nanoparticles on ZnO sub-micrometer structures." @default.
- W2379936054 created "2016-06-24" @default.
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- W2379936054 date "2011-01-01" @default.
- W2379936054 modified "2023-09-23" @default.
- W2379936054 title "The Growth and Photoluminescence of Comb-Like ZnO Sub-Micrometer Structure" @default.
- W2379936054 hasPublicationYear "2011" @default.
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