Enhancement of Ultraviolet Emission of ZnO Hollow Nanofibers

Hai Ping Wang

doi:10.4028/www.scientific.net/AMR.971-973.244

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 971-973Enhancement of Ultraviolet Emission of ZnO Hollow...

Enhancement of Ultraviolet Emission of ZnO Hollow Nanofibers

Abstract:

ZnO hollow nanofibers were fabricated by sputtering using electrospun PVP nanofibers as templates. Scanning electron microscopy, transmission electron microscopy, X-ray diffraction and UV Raman were used to characterize the morphologies, crystal configuration and bonding structure of ZnO hollow nanofibers. A reactive mechanism of the transformation from poor polycrystalline ZnO (Zn-rich) prepared by sputtering from a metallic Zn target to good polycrystalline ZnO after annealing is proposed. The mechanism results in great decrease of oxygen vacancies and interstitial zinc of the ZnO hollow nanofibers after annealing. Optical properties were investigated by the photoluminescence spectra. Enhancement of ultraviolet emission of the ZnO hollow nanofibers is discussed.

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Periodical:

Advanced Materials Research (Volumes 971-973)

Pages:

244-248

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.971-973.244

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Online since:

June 2014

Authors:

Hai Ping Wang*

Keywords:

Photoluminescence (PL), Random Lasing, Ultraviolet Emission, ZnO Hollow Nanofibers

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