The effect of spray cycles on the morphological, structural, and optical properties of rGO thin film deposited using spray pyrolysis technique

2021 ◽  
Vol 127 ◽  
pp. 105655
Author(s):  
A.S. AlShammari ◽  
M.M. Halim ◽  
F.K. Yam ◽  
K.M. Chahrour ◽  
M.E. Raypah ◽  
...  
2016 ◽  
Vol 22 (11) ◽  
pp. 3844-3846
Author(s):  
M Sarathbavan ◽  
Mudaliar Mahesh Margoni ◽  
K Ramamurthi ◽  
R. Ramesh Babu

2019 ◽  
Vol 206 ◽  
pp. 59-69 ◽  
Author(s):  
Serdar Gültekin ◽  
Serdar Yıldırım ◽  
Ozan Yılmaz ◽  
İlker Çetin Keskin ◽  
Mehmet İsmail Katı ◽  
...  

2010 ◽  
Vol 7 (1) ◽  
pp. 69-75
Author(s):  
Baghdad Science Journal

Undoped and Co-doped zinc oxide (CZO) thin films have been prepared by spray pyrolysis technique using solution of zinc acetate and cobalt chloride. The effect of Co dopants on structural and optical properties has been investigated. The films were found to exhibit maximum transmittance (~90%) and low absorbance. The structural properties of the deposited films were examined by x-ray diffraction (XRD). These films, deposited on glass substrates at (400? C), have a polycrystalline texture with a wurtzite hexagonal structure, and the grain size was decreased with increasing Co concentration, and no change was observed in lattice constants while the optical band gap decreased from (3.18-3.02) eV for direct allowed transition. Other parameters such as Texture Coefficient (Tc), dislocation density (?) and number of crystals (M) were also calculated .


2014 ◽  
Vol 11 (2) ◽  
pp. 518-526
Author(s):  
Baghdad Science Journal

Thin films of pure tin mono-sulfide SnS and tin mono-sulfide for (1,2,3,4)% fluorine SnS:F with Thicknesses of (0.85 ±0.05) ?m and (0.45±0.05) ?m respectively were prepared by chemical spray pyrolysis technique. the effect of doping of F on structural and optical properties has been studied. X-Ray diffraction analysis showed that the prepared films were polycrystalline with orthorhombic structure. It was found that doping increased the intensity of diffraction peaks. Optical properties of all samples were studied by recording the absorption and transmission spectrum in range of wave lengths (300-900) nm. The optical energy gap for direct forbidden transition and indirect allowed transition were evaluated It is found that for doping less than 2% the optical energy gap increases as the percentage of doping increases in the samples while for doping more than 2% the values of the optical energy gap decreases as the percentage of doping increases.


2018 ◽  
Vol 17 (03) ◽  
pp. 1760037 ◽  
Author(s):  
A. Nancy Anna Anasthasiya ◽  
K. Gowtham ◽  
R. Shruthi ◽  
R. Pandeeswari ◽  
B. G. Jeyaprakash

The spray pyrolysis technique was employed to deposit V2O5 thin films on a glass substrate. By varying the precursor solution volume from 10[Formula: see text]mL to 50[Formula: see text]mL in steps of 10[Formula: see text]mL, films of various thicknesses were prepared. Orthorhombic polycrystalline V2O5 films were inferred from the XRD pattern irrespective of precursor solution volume. The micro-Raman studies suggested that annealed V2O5 thin film has good crystallinity. The effect of precursor solution volume on morphological and optical properties were analysed and reported.


2016 ◽  
Vol 130 (3) ◽  
pp. 805-810 ◽  
Author(s):  
O.V. Diachenko ◽  
A.S. Opanasuyk ◽  
D.I. Kurbatov ◽  
N.M. Opanasuyk ◽  
O.K. Kononov ◽  
...  

2019 ◽  
Vol 397 ◽  
pp. 81-87 ◽  
Author(s):  
Farid Khediri ◽  
Abdelkader Hafdallah ◽  
Mouna Bouhelal

In this work Zinc oxide thin films prepared by spray pyrolysis technique. A set of ZnO thin films were deposited with various deposition times, on glass substrate at 350 °C. The precursor solution is formed with zinc acetate in distilled methanol with 0.1 molarity. The deposition time was ranged from 2 to 8 min. The structural and optical properties of those films were examined by X-ray diffraction (XRD) and ultraviolet-visible spectrometer (UV). X-ray diffraction patterns of the ZnO thin films showed polycrystalline hexagonal wurtzite structure and the preferred orientation was along (002) plane when the grain size varied between 9.66 and 16.67nm. ZnO thin films were highly transparent in the visible with the maximum transmittance of 85% and the optical band gap was found between 3.25 and 3.28 eV.


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