Concentration of Spraying Solution Effect on the Structural, Morphological and Optical Properties of NiO Thin Films
Journal Title: Al-Bahir Journal for Engineering and Pure Sciences - Year 2023, Vol 3, Issue 2
Abstract
In the present study nickel oxide NiO thin films of thickness ranging about 250e350 nm which were prepared on glass substrates by using chemical spray pyrolysis as a simple and low cost method. The impact of thickness and aqueous solution molarity concentration on the crystal structure and optical characteristics were investigated. The results showed that the deposited films is homogenous and have a good adherent to the glass substrates. The crystal structure results showed that all films have polycrystalline in nature, of rock salt phase, and the preferential orientation is an along (111) plane. The diffraction intensity was increased with the increase in spray solution concentration, leading to the enhancement of the crystallinity and an increase in the crystallite size from 9.7 nm to 28.5 nm and reducing the dislocation density from (104.3e12.2) £ 1016 line/m2 . While the results of AFM results show that the grain size (D) enlarges with increasing molarities concentration. Transmittance spectra confirm that the optical transmittance is of the direct allowed type, while the value of transparency ranged from moderate to weak value and decrease when the spray solution molar concentration and film thickness increases. Whereas the forbidden energy gap was decremented with the increment of molarity concentration of spray solution and film thickness from 3.85 to 3.15 eV.
Authors and Affiliations
Radhiyah M. Aljarrah, Ali Madlool Naamah, Adel H. Omran Alkhayatt
Keywords
Related Articles
- EP ID EP744526
- DOI -
- Views 30
- Downloads 0
Detection of Data over wireless mobile channels based on Maximum Likelihood Technique
Next generation wireless systems are characterized by very high transmission bit rates which gives rise to severe Intersymbol interference (ISI) and this makes the detection process very challenging. Hence, assessment o...
Parallel algorithm for testing the singularity of an N-th order matrix
Forecasting the Demand for Asphalt Concrete in Karbala Governorate
The challenge of forecasting asphalt concrete demand in the Karbala governorate is the subject of this study. Population and number of vehicles in Karbala are considered among the independent (explanatory) variables tak...
In silico Evaluation of the Antimalarial Potential of the Phytoconstituents of the Azadirachta indica Plant
Background and objectives: Malaria, a parasitic protozoan disease caused primarily by Plasmodium falciparum, has killed millions of people in Africa, particularly those with meager or no access to orthodox medical facil...
Biasing Estimator to Mitigate Multicollinearity in Linear Regression Model