Growth of arrays of Al-doped ZnO nanocones by pulsed laser deposition

Arrays of aligned Al-doped ZnO nanocones have been synthesized by pulsed laser deposition following excimer laser ablation of a ceramic ZnO target containing 2% Al(2)O(3) (by weight). The elemental composition, microstructural and optical properties of the products were examined by laser induced bre...

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Bibliographic Details
Published in:Nanotechnology 2007-12, Vol.18 (49), p.495601-495601 (4)
Main Authors: Sun, Ye, Addison, Katherine E, Ashfold, Michael N R
Format: Article
Language:English
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Summary:Arrays of aligned Al-doped ZnO nanocones have been synthesized by pulsed laser deposition following excimer laser ablation of a ceramic ZnO target containing 2% Al(2)O(3) (by weight). The elemental composition, microstructural and optical properties of the products were examined by laser induced breakdown spectroscopy, electron microscopy, x-ray diffraction and room temperature photoluminescence measurements. The incident laser fluence was identified as a key parameter in nanocone formation. Their tapered morphologies and small tip diameters (approximately 5 nm) suggest that Al-doped ZnO nanocones could find application as field emitters and as a gas sensing material.
ISSN:0957-4484
1361-6528
DOI:10.1088/0957-4484/18/49/495601