Effect of Cobalt Chloride Concentration on Structural, Optical and Electrical Properties of Co3O4 Thin Films Deposited by Pneumatic Spray

Kouidri , Nabila; Rahmane , Saâd

doi:10.12816/0058152

Article Details

Effect of Cobalt Chloride Concentration on Structural, Optical and Electrical Properties of Co3O4 Thin Films Deposited by Pneumatic Spray

Authors:

Kouidri , Nabila | Rahmane , Saâd

Publisher:

University of Oum El-Bouaghi

Main Topics:

Physics

Journal:

Journal of New Technology and Materials 2020 Vol.10 Issue 1, pp.56-62

Document Type:

Article

Publication Date:

6/2020

Document Language:

English

Document ID (Org No.):

233594

Frequency:

Bi-Annual

pISSN:

2170161X

DOI:

10.12816/0058152

Descriptors:

Keywords:

Abstract:

 Cobalt oxide (Co3O4) thin films at different solution molarities (0.05, 0.1, 0.15, and 0.2mol/l) were successfully deposited on glass substrates by home-made pneumatic spray pyrolysis system (SPT) where the substrate temperature was maintained at 400 °C. Different techniques were used to study the properties of the deposited films. These are the X-Ray diffraction, UV-VIS spectroscopy, energy dispersive spectroscopy (EDS), scanning electron microscopy (SEM) and four probe points measurements. The obtained Co3O4 thin films are polycrystalline where the crystallites size increases from 19.53 to 26.11 nm when the molar concentration of Co precursor was increasing. SEM images revealed a uniform, homogeneous and well covered surface without any observable cracks. Peaks associated with Co and O elements are present in EDS analysis witch confirm the composition of the films. The transmittance spectra in the wavelength range of 300-2000 nm are used to study the optical properties. The optical band gap varied from 1.47 to 2.02 eV in the high energy region and from 1.41 to 1.45 eV in the low energy region. The electrical conductivity increased from 2.43*10-3 to 8.76*10-2 (Ω.cm)-1 with the increase of molarity.

Article Details

Effect of Cobalt Chloride Concentration on Structural, Optical and Electrical Properties of Co3O4 Thin Films Deposited by Pneumatic Spray

Authors:

Kouidri , Nabila | Rahmane , Saâd

Publisher:

University of Oum El-Bouaghi

Main Topics:

Physics

Journal:

Journal of New Technology and Materials 2020 Vol.10 Issue 1, pp.56-62

Document Type:

Article

Publication Date:

6/2020

Document Language:

English

Document ID (Org No.):

233594

Frequency:

Bi-Annual

pISSN:

2170161X

DOI:

10.12816/0058152

Descriptors:

COBALT

CHLORIDES

PHYSICAL TREATMENT

ELECTRICAL PROPERTIES

Thin Film

Co3O4

Pneumatic Spray

Molarity

Properties

Issues

Article Details

Authors: Kouidri , Nabila | Rahmane , Saâd

Publisher: University of Oum El-Bouaghi

Main Topics: Physics

Journal: Journal of New Technology and Materials 2020 Vol.10 Issue 1, pp.56-62

Document Type: Article

Publication Date: 6/2020

Document Language: English

Document ID (Org No.): 233594

Frequency: Bi-Annual

pISSN: 2170161X

DOI: 10.12816/0058152

Descriptors:

Issues

Authors:

Kouidri , Nabila | Rahmane , Saâd

Publisher:

University of Oum El-Bouaghi

Main Topics:

Physics

Journal:

Journal of New Technology and Materials 2020 Vol.10 Issue 1, pp.56-62

Document Type:

Article

Publication Date:

6/2020

Document Language:

English

Document ID (Org No.):

233594

Frequency:

Bi-Annual

pISSN:

2170161X

DOI:

10.12816/0058152