Role of Solution pH on the Microstructural Properties of Spin Coated Cobalt Oxide Thin Films

Valanarasu, S.; Dhanasekaran, V.; Karunakaran, M.; Chandramohan, R.; Mahalingam, T.

doi:10.1166/jnn.2014.8284

Cited by 12 publications

(4 citation statements)

References 13 publications

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“…The preferred orientation of the different crystalline planes can be calculated by Harris's analysis, by calculating texture coefficient and it is determined by using equation ( 4) [18]. the texture coefficient of (200) plane increases remarkably with a concomitant decrease in (110) with increasing substrate temperature during the deposition process which results in reduced planar density on (110) plane up to 450°C.…”

Section: Resultsmentioning

confidence: 99%

Influence of Substrate Temperature on Structural, Electrical and Optical Properties of Nanostructured SnO2 thin Films Deposited by Spray Pyrolysis Technique

Harshavardhan¹,

Kumar²,

Nagaraju³

et al. 2019

IJSRPAS

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SnO 2 nanostructured thin films were deposited on ultrasonically cleaned glass substrates at different substrate temperatures using the spray pyrolysis technique. The influence of substrate temperature on structural, morphological, electrical and optical properties of thin films have been investigated by X-ray diffraction (XRD), scanning electron microscopy(SEM), energy dispersive spectroscopy (EDAX), two probe method and UV-Vis spectroscopy respectively. It was found that the deposited thin films were showing a tetragonal structure with a preferred orientation along (200) direction. Scanning electron microscopy results have shown that the substrate temperature influenced the growth mechanism of the SnO 2 thin films. Optical properties of thin films were analyzed by UV-Vis spectrophotometer. Optical band gap values were determined using Tauc extrapolation at different substrate temperatures. As the substrate temperature increased from 350 o C to 450 o C, optical band gap was found to increase from 3.14 eV to 3.67 eV. The figure of merit has been calculated from transmission spectra and the electrical properties are analysed and discussed.

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Section: Resultsmentioning

confidence: 99%

Influence of Substrate Temperature on Structural, Electrical and Optical Properties of Nanostructured SnO2 thin Films Deposited by Spray Pyrolysis Technique

Harshavardhan¹,

Kumar²,

Nagaraju³

et al. 2019

IJSRPAS

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“…These results and band diagram behavior of thin films suggest potential application in supercapacitors as electrode and optoelectronic devices. Valanarasu et al [48] deposited Co 3 O 4 thin films on a glass substrate at various pH values. pH influences the thickness, optical and electri-cal properties of thin films.…”

Section: Synthesis Methods Of Cobalt Oxide Nanoparticlesmentioning

confidence: 99%

Synthesis and Characterization of Cobalt Oxide Nanostructures. a Brief Review

Mammadyarova¹

2021

AChJ

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The newest achievement in the synthesis of cobalt oxide nanoparticles are considered. Cobalt oxide nanoparticles have attracted a great attention due to their uncommon properties and application in a supercapacitor, optoelectronic device, Li-ion battery gas sensor and electrochromic devices. Recently, nanostructured transition metal oxides with valuable properties have become a new class of materials for many technological fields. Cobalt oxide nanoparticles obtained from various precursors show different size distribution as well as different optical, electrical, magnetic, and electrochemical properties. A reduction in particle size to nanometer-scale leads to changes in properties compared to bulk ones due to quantum size effects. Depending on the application area, the choice of an appropriate synthesis method for nanoparticles with desirable properties is a crucial factor. This work aims to provide additional information on the synthesis methods and properties of cobalt oxide nanoparticles

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“…The crystallite sizes of all the prepared samples were calculated using Debye-Scherrer formula [19][20][21][22].…”

Section: Structural Studiesmentioning

confidence: 99%

Structural and Optical Properties of Mn-Doped ZnO Thin Films Prepared by SILAR Method

Karunakaran

Maheswari

Kasirajan

et al. 2017

ILCPA

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The growth of highly textured Mn doped Zinc oxide (ZnO) thin films with a preferred (002) orientation has been reported by employing successive ionic layer growth by adsorption reaction (SILAR) using a sodium zincate bath on glass substrates has been reported. The prepared films were characterized by X-ray diffraction (XRD), optical spectroscopy and scanning electron microscopy (SEM) measurement. The XRD analysis reveals that the films were polycrystalline. Morphology of the films was found to be uniform with smaller grains and exhibits a structure with porous. The calculated Band gap value was found to be 3.21 eV prepared at 15 mM MnSO4 concentration.

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Role of Solution pH on the Microstructural Properties of Spin Coated Cobalt Oxide Thin Films

Cited by 12 publications

References 13 publications

Influence of Substrate Temperature on Structural, Electrical and Optical Properties of Nanostructured SnO2 thin Films Deposited by Spray Pyrolysis Technique

Influence of Substrate Temperature on Structural, Electrical and Optical Properties of Nanostructured SnO2 thin Films Deposited by Spray Pyrolysis Technique

Synthesis and Characterization of Cobalt Oxide Nanostructures. a Brief Review

Structural and Optical Properties of Mn-Doped ZnO Thin Films Prepared by SILAR Method

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