Nano Archive

Structural, morphological and photoluminescence properties of W-doped ZnO nanostructures

Ngom, B D and Sakho, O and Manyala, N and Kana Kana, J B and Mlungisi, N. and Guerbous, L. and Fasasi, A.Y. and Maaza, M. (2009) Structural, morphological and photoluminescence properties of W-doped ZnO nanostructures. Applied Surface Science, 225 . pp. 7314-7318. ISSN 0169-4332

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Abstract

W-doped ZnO nanostructures were synthesized at substrate temperature of 600 8C by pulsed laser deposition (PLD), from different wt% ofWO3 and ZnOmixed together. The resulting nanostructures have been characterized by X-ray diffraction, scanning electron microscopy, atomic force microscopy and photoluminescence for structural, surface morphology and optical properties as function of W-doping. XRD results show that the films have preferred orientation along a c-axis (0 0 L) plane. We have observed nanorods on all samples, except that W-doped samples show perfectly aligned nanorods. The nanorods exhibit near-band-edge (NBE) ultraviolet (UV) and violet emissions with strong deep level blue emissions and green emissions at room temperature.

Item Type:Article
Subjects:Analytical Science > Microscopy and probe methods
Physical Science > Nanophysics
Material Science > Nanofabrication processes and tools
Material Science > Nanostructured materials
Physical Science > Photonics
Analytical Science > Beam methods
ID Code:7249
Deposited By:Dr Balla Diop Ngom
Deposited On:05 Oct 2009 07:39
Last Modified:05 Oct 2009 07:39

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