Simple synthesis and spectroscopic studies on cobalt added ZnO nanocrystals

Pandiyarajan, T and Karthikeyan, B and Venkatesan, P and Ashok, M and Anandan, S and Giridharan, NV (2009) Simple synthesis and spectroscopic studies on cobalt added ZnO nanocrystals. In: Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 74 (1). pp. 84-86.

PDF fulltext.pdf - Published Version Restricted to Registered users only Download (353kB) | Request a copy

Abstract

Cobalt doped zinc oxide nanoparticles were prepared through simple wet chemical method. X-ray diffraction studies confirm the prepared particles are in wurtzite structure. Scanning Electron Microscopy studies show the shape and morphology of the particles. To identify the presence of cobalt in ZnO, Energy Dispersive X-ray analysis was done. Optical absorption measurements show the presence of exciton peak at 375 nm. Photoluminescence studies were done with the excitation wavelength of 330 nm, which shows the emission because of exciton recombination and oxygen vacancy.

Item Type:	Journal Article
Publication:	Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy
Publisher:	Elsevier Science
Additional Information:	Copyright of this article belongs to Elsevier B. V., 2009
Keywords:	Nanoparticles; Nano materials; Excitons
Department/Centre:	Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited:	06 Jan 2010 10:21
Last Modified:	19 Sep 2010 05:49
URI:	http://eprints.iisc.ac.in/id/eprint/24204

Actions (login required)

View Item