INSIGHT INTO STRUCTURAL, OPTICAL AND ELECTRICAL PROPERTIES OF COBALT OXIDE Co3O4 THIN FILM
K. M. E. Boureguig (),
H. Tabet-Derraz and
T. Seddik ()
Additional contact information
K. M. E. Boureguig: Laboratory of Materials Manufacturing and Characterization, Djillali Liabes University, Sidi Bel Abbes 22000, Algeria
H. Tabet-Derraz: Laboratory of Materials Manufacturing and Characterization, Djillali Liabes University, Sidi Bel Abbes 22000, Algeria
T. Seddik: #x2020;Laboratory of Quantum Physics of Matter and Mathematical Modeling, Mustapha Stambouli University, Mascara 29000, Algeria
Surface Review and Letters (SRL), 2020, vol. 27, issue 04, 1-9
Abstract:
In the present paper, experimental investigations on structural, morphological, optical and electrical properties of Co3O4 thin film deposited by spray pyrolysis method are reported. Using the interplanar spacing of the XRD reflection and Scherrer formula, respectively, we observed that the obtained films identified crystallize in the cubic spinel structure with a=0.8245 nm and d=19 nm. From the SEM picture, a dense grain in the morphology of Co3O4 is detected which has a uniform spherical shape. In addition, transmittance, absorbance, optical bandgap and extinction coefficient of the film versus incident photon energy were calculated. We found that Co3O4 film has a direct bandgap and direct forbidden transition varying from 1.69 eV to 2.85 eV and 1.62 eV to 1.88 eV, respectively. Further, the variation of (DC) electrical resistivity with temperature (from the room temperature of 27∘C to 350∘C) shows that the electrical resistivity was decreased with increasing temperature indicating a semiconducting transport behavior.
Keywords: Spray pyrolysis; Co3O4 thin films; SEM; structural properties; optical and electrical properties (search for similar items in EconPapers)
Date: 2020
References: View complete reference list from CitEc
Citations:
Downloads: (external link)
http://www.worldscientific.com/doi/abs/10.1142/S0218625X19501348
Access to full text is restricted to subscribers
Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.
Export reference: BibTeX
RIS (EndNote, ProCite, RefMan)
HTML/Text
Persistent link: https://EconPapers.repec.org/RePEc:wsi:srlxxx:v:27:y:2020:i:04:n:s0218625x19501348
Ordering information: This journal article can be ordered from
DOI: 10.1142/S0218625X19501348
Access Statistics for this article
Surface Review and Letters (SRL) is currently edited by S Y Tong
More articles in Surface Review and Letters (SRL) from World Scientific Publishing Co. Pte. Ltd.
Bibliographic data for series maintained by Tai Tone Lim ().