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Growth mechanism of ZnO nanostructures for ultra-high piezoelectric d(33) coefficient

Ghosh, Moumita and Rao, Mohan G (2013) Growth mechanism of ZnO nanostructures for ultra-high piezoelectric d(33) coefficient. In: Materials Express, 3 (4). pp. 319-327.

mat_exp_3-4_319_2013.pdf - Accepted Version

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Official URL: http://dx.doi.org/10.1166/mex.2013.1134


A comparative morphological study of different ZnO nanostructures was carried out with different varying process parameters for energy harvesting. Molarity, temperature, growth duration and seed layer were such fundamental controlling parameters. The study brings out an outstanding piezoelectric coefficient (d(33)) of 44.33 pm/V for vertically aligned ZnO nanorod structures, considered as the highest reported d(33) value for any kind of ZnO nanostructures. XRD analysis confirms wurtzite nature of this nanorod structure with 0001] as preferential growth direction. Semiconducting characteristic of nanorods was determined with temperature induced I/V characterization.

Item Type: Journal Article
Publication: Materials Express
Publisher: American Scientific Publishers
Additional Information: Copyright of this article belongs to American Scientific Publishers.
Keywords: ZnO; Nanostructures; Scanning Electron Microscopy (SEM); X-Ray Diffraction (XRD); Piezoelectric Force Microscopy (PFM); Current/Voltage (I/V) Characteristic
Department/Centre: Division of Interdisciplinary Sciences > Centre for Nano Science and Engineering
Division of Physical & Mathematical Sciences > Instrumentation Appiled Physics
Date Deposited: 17 Jan 2014 10:41
Last Modified: 20 Jan 2014 07:24
URI: http://eprints.iisc.ac.in/id/eprint/48054

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