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Author Mukherjee, Amrita ♦ Dhar, Subhabrata
Source United States Department of Energy Office of Scientific and Technical Information
Content type Text
Language English
Subject Keyword CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY ♦ CHEMICAL VAPOR DEPOSITION ♦ COMPARATIVE EVALUATIONS ♦ CROSS SECTIONS ♦ CRYSTAL STRUCTURE ♦ EMISSION SPECTRA ♦ FILMS ♦ NANOSTRUCTURES ♦ PHOTOLUMINESCENCE ♦ REDUCTION ♦ SAPPHIRE ♦ X-RAY DIFFRACTION ♦ ZINC OXIDES
Abstract Network of wedge shaped ZnO nanowalls are grown on c-sapphire by Chemical Vapor Deposition (CVD) technique. Structural studies using x-ray diffraction show much better crystallinity in the nanowall sample as compared to the continuous film. Moreover, the defect related broad green luminescence is found to be suppressed in the nanowall sample. The low temperature photoluminescence study also suggests the quantum confinement of carriers in nanowall sample. Electrical studies performed on the nanowalls show higher conductivity, which has been explained in terms of the reduction of scattering cross-section as a result of 1D quantum confinement of carriers on the tip of the nanowalls.
ISSN 0094243X
Educational Use Research
Learning Resource Type Article
Publisher Date 2015-06-24
Publisher Place United States
Volume Number 1665
Issue Number 1


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