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Shape Transformation of ZnO Nanorods/Nanotubes at Low Temperature

Brahma, Sanjaya and Nanda, KK and Shivashankar, SA (2012) Shape Transformation of ZnO Nanorods/Nanotubes at Low Temperature. In: Current Nanoscience, 8 (1). pp. 156-160.

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Official URL: http://www.benthamdirect.org/pages/content.php?CNA...

Abstract

We report the shape transformation of ZnO nanorods/nanotubes at temperatures (similar to 700 degrees C) much lower than the bulk melting temperature (1975 degrees C). With increasing annealing temperature, not only does shape transformation take place but the luminescence characteristics of ZnO are also modified. It is proposed that the observed shape transformation is due to surface diffusion, contradicting the previously reported notion of melting and its link to luminescence. Luminescence in the green-to-red region is observed when excited with a blue laser, indicating the conversion of blue to white light.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Bentham Science Publishers.
Keywords: Nanostructured materials;shape transformation;ZnO
Department/Centre: Division of Chemical Sciences > Materials Research Centre
Date Deposited: 20 Mar 2012 11:36
Last Modified: 20 Mar 2012 11:36
URI: http://eprints.iisc.ernet.in/id/eprint/44019

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