Title: Thickness dependent microstructure of ZnO films prepared by spin coating technique

Authors: Ipsita Jena; S.N. Das; Dilip Kumar Mishra; Gouranga Bose

Addresses: Department of Electronics and Instrumentation Engineering, Institute of Technical Education and Research, Siksha 'O' Anushandhan University, Bhubaneswar 751030, Odisha, India ' Department of Electronics and Instrumentation Engineering, Institute of Technical Education and Research, Siksha 'O' Anushandhan University, Bhubaneswar 751030, Odisha, India ' Department of Physics, Institute of Technical Education and Research, Siksha 'O' Anushandhan University, Bhubaneswar 751030, Odisha, India ' Department of Electronics and Instrumentation Engineering, Institute of Technical Education and Research, Siksha 'O' Anushandhan University, Bhubaneswar 751030, Odisha, India

Abstract: Different layers of ZnO films have been synthesised onto glass substrate by spin coating technique. The effect of different layers on the crystallinity and morphology of ZnO films have been investigated. The crystallographic analysis of different layers of ZnO films shows hexagonal wurtzite structure. However, the crystalline quality of ZnO having seven layers is most prominent in compared to the other layered ZnO films. Fibre nature of ZnO has been observed in the scanning electron micrographs. The densification of the fibres increases with the increased number of layers. The length and width of fibre like structures lie between 4-15 μm and 0.9-2 μm respectively.

Keywords: ZnO films; zinc oxide; sol gel; crystal structure; XRD; SEM; film thickness; microstructure; spin coating; crystallography.

DOI: 10.1504/IJNBM.2014.069824

International Journal of Nano and Biomaterials, 2014 Vol.5 No.4, pp.287 - 296

Available online: 12 Jun 2015 *

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