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Growth of aligned arrays of ZnO nanorods by low temperature solution method on Si surface

Chander, R and Raychaudhuri, AK (2006) Growth of aligned arrays of ZnO nanorods by low temperature solution method on Si surface. In: Journal Of Materials Science, 41 (12). 3623- 3630.

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We report growth of ZnO nanorods by low temperature (< 100 degrees C) solution growth method. The substrates(Si,glass and fused Quartz) were seeded by pre-coating with ZnO nanoparticles (4-7 nm diameter) prepared by chemical precipitation route. Nanorods were grown on the seeded substrate in aqueous solution of Zinc Nitrate and Hexamethylenetetramine (HMT). The growth process lasts for up to 8 h and at the maximum time of growth, the nanorods have a width of similar to 230-250 nm and length of similar to 1.5-1.6 mu m. The growth process after some initial growth (< 2 h) preserves the aspect ratio and leads to about 90% texturing along the (002) direction.The growth of the nanorods was studied with time and observed growth data suggests a two-stage growth process. The nanorods have a well-defined hexagonal morphology and have a Wurtzite structure. The nanorods were characterized by different techniques and have a band gap of 3.25 eV.

Item Type: Journal Article
Publication: Journal Of Materials Science
Publisher: Springer
Additional Information: Copyright of this article belongs to Springer
Department/Centre: Division of Chemical Sciences > Materials Research Centre
Division of Physical & Mathematical Sciences > Physics
Date Deposited: 25 Mar 2009 04:56
Last Modified: 19 Sep 2010 04:56
URI: http://eprints.iisc.ac.in/id/eprint/17275

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