Nanostructure of ZnO fabricated via French process and its correlation to electrical properties of semiconducting varistors

Mahmud, Shahrom, Abdullah, Mat, Putrus, Ghanim, Chong, John and Mohamad, Karim (2006) Nanostructure of ZnO fabricated via French process and its correlation to electrical properties of semiconducting varistors. Synthesis and Reactivity in Inorganic, Metal-Organic and Nano-Metal Chemistry, 36 (2). pp. 155-159. ISSN 1553 3174

Full text not available from this repository. (Request a copy)

Abstract

The rich nanostructural diversity of commecial zinc oxide, fabricated via French process, is investigated. FESEM images of ZnO nanostructures reveal nanorods, nanoplates, nanoboxes, nanomallets, microclusters, polyhedral drums and irregularly-shaped particles (ISPs). Due to nanoscopic inhomogeneity in crystallisation conditions, many types of ZnO nanostructures coexist (and codiffuse) even in a minute region of 1 μm3. The nanostructures generally grow in either the [0001] or the [1010] plane directions. EDS analysis reveals that hexagonal-like nanorods/drums possess higher oxygen-to-zinc atomic ratios than that of the rectangular-like nanoplates/boxes. A correlation between ZnO nanostructure and semiconducting varistors shows that nanorod-rich specimens exhibit superior nonlinearity but poorer energy handling.

Item Type:	Article
Uncontrolled Keywords:	French process, nanostructure, varistor, ZnO
Subjects:	F200 Materials Science
Department:	Faculties > Engineering and Environment > Mathematics, Physics and Electrical Engineering
Depositing User:	Becky Skoyles
Date Deposited:	30 Jan 2015 11:40
Last Modified:	12 Oct 2019 19:06
URI:	http://nrl.northumbria.ac.uk/id/eprint/19964

Downloads