Influence of coumarin as an additive on CuO nanostructures prepared by successive ionic layer adsorption and reaction (SILAR) method

Date
2013
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Source Title
Journal of Alloys and Compounds
Print ISSN
0925-8388
Electronic ISSN
1873-4669
Publisher
Elsevier
Volume
566
Issue
Pages
78 - 82
Language
English
Type
Article
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Abstract

The effect of coumarin doping during the growth of CuO nanostructures by SILAR method has been studied. It was found that coumarin considerably influences the growth process, manipulates the bandgap and modifies the crystallite size of the films. XRD experiments evidenced that with higher coumarin concentrations in the growth solution, the microstrain and dislocation density increased, while the crystallite size of the films decreased. SEM images revealed that the thicknesses of the plate-like nanostructures decreased with increasing coumarin concentration. By UV/vis spectrophotometer analysis it is found that the coumarin concentration affects both the optical band gap and the transmission rate: both the band gap and spectral transmittance values of the films decreased for higher coumarin content. © 2013 Elsevier B.V. All rights reserved.

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Keywords
CuO, SILAR, Band gap energy, Coumarin
Citation
Published Version (Please cite this version)