Cu-doped ZnS coatings for optoelectronics with enhanced protection for UV radiations

Gbashi, Kadhim R.; Khammas, Abbas

doi:10.1007/s10854-020-04280-z

Cited by 10 publications

(5 citation statements)

References 30 publications

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“…As the flow rate increases, the refractive index also increases, which could be a result of successive internal reflection or trapped phonon energy in the grain boundaries. This has also been reported in the literature [41,42]. The real and imaginary dielectric constants of the deposited CZS thin films provide information about the defects and conducting nature of the sample [42].…”

supporting

confidence: 72%

“…The real and imaginary dielectric constants of the deposited CZS thin films provide information about the defects and conducting nature of the sample [42]. The real dielectric constant, e , r and imaginary dielectric constant, e , i were obtained from the relation [42]: to increase monotonically slightly from 1.55 to 4.0 eV. This could be ascribed to light scattering from the grain boundaries of the films.…”

mentioning

confidence: 99%

“…This could be ascribed to light scattering from the grain boundaries of the films. This could also be due to charge carrier recombination losses [41][42][43].…”

mentioning

confidence: 99%

“…Optical conductivity which measures how conducting the deposited CZS thin films are when photon energy is allowed to pass through, was measured using the relation [42]:…”

mentioning

confidence: 99%

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Opto-electronic properties of copper-zinc-sulfide thin films grown via metalorganic-chemical vapor deposition technique at different flow rates

et al. 2023

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In this work, copper zinc sulfide (CZS) ternary thin films were prepared from the pyrolysis of a Bis-(morpholinodithiato-s,s’)-Cu-Zn precursor using metal-organic chemical vapor deposition technique maintained at 450 ℃ in ambient nitrogen as the carrier gas. The deposition flow rate was varied to study its effect on the optoelectronic properties of CZS films. The particle-induced X-ray emission technique (PIXE) of the prepared single solid source precursor shows the presence of copper, zinc, and sulfur. The Fourier transform infrared spectrophotometer of the precursor reveals the metal-metal bond attachment to the ligand at a very low wavenumber. The XRD spectra reveal the formation of the hexagonal closed-packed structure of CZS films with a preferred orientation along the [111] direction. The film crystallite size is found to increase from 10.4 to 12.2 nm as the flow rate increases, while the dislocation density and stress decrease as the deposition flow rate increases. The SEM analysis revealed an improvement in the growth rate of the grains as the flow rate increased. The transmittance of the deposited CZS films was found to increase from 58% to 84.2% in the infrared region with an increase in band gap from 3.08 – 3.64 eV as the flow rate increased. The deposited film shows ohmic properties and an increase in conductivity from 0.243 to 0.847 (Ω cm)-1, while the resistivity decreases as the flow rate increases. These observations provide room for the deposited CZS film to serve as a potential material for optoelectronics and window layer solar cell devices.

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supporting

confidence: 72%

mentioning

confidence: 99%

“…This could be ascribed to light scattering from the grain boundaries of the films. This could also be due to charge carrier recombination losses [41][42][43].…”

mentioning

confidence: 99%

“…Optical conductivity which measures how conducting the deposited CZS thin films are when photon energy is allowed to pass through, was measured using the relation [42]:…”

mentioning

confidence: 99%

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Opto-electronic properties of copper-zinc-sulfide thin films grown via metalorganic-chemical vapor deposition technique at different flow rates

et al. 2023

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“…Zinc-based materials have been in great demand for decades. Every year, there are many publications on zinc-based materials analyzed in the context of applications ranging from metallic anti-corrosion coatings [ 1 , 2 , 3 , 4 , 5 ] to protective composite coatings [ 1 , 6 , 7 , 8 ], decorative coatings [ 9 , 10 ], biodegradable materials [ 11 , 12 ], alloys with increased corrosion resistance [ 13 , 14 ], rechargeable aqueous batteries [ 15 , 16 ], and semiconductors [ 17 , 18 , 19 ]. Zinc coatings are most commonly used for the anti-corrosion protection of steel constructions.…”

Section: Introductionmentioning

confidence: 99%

Ultrasound Supported Galvanostatic Deposition of Zn Coatings Reinforced with Nano-, Submicro-, and Micro-SiC Particles—Weak Acidic Chloride Baths

2021

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In this paper, we present results concerning the electrochemical deposition of Zn-SiC composite coatings reinforced with nano-, submicro-, and microparticles. The influence of current density, particle size, and ultrasound on functional parameters which are especially important from a practical point of view (i.e., concentration of particles in coatings, current efficiency, morphology, reflectivity, roughness, hardness, and corrosion resistance) are investigated and discussed. Coatings were deposited from commercial, chloride-based electrolytes dedicated for the deposition of Zn coatings in a weakly acidic environment. Electrodeposited composites contained up to 1.58, 4.08, and 1.15 wt. % of SiC for coatings reinforced with nano, submicro, and micrometric particles, respectively. The process proceeded with relatively high efficiency, exceeding 80% in almost all cases. The results indicate that ultrasounds strongly increase Faradaic efficiency and affect the kinetics of electrode processes and the properties of synthesized coatings. Moreover, the obtained results show that it is possible to synthesize composite coatings with slightly higher mechanical properties while retaining corrosion resistance compared to metallic Zn coatings.

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Toward a novel and accurate relationship between electrical and optical conductivity in opto-material sciences: New strategy

Gomaa

Yahia

2022

J Comput Electron

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Cu-doped ZnS coatings for optoelectronics with enhanced protection for UV radiations

Cited by 10 publications

References 30 publications

Opto-electronic properties of copper-zinc-sulfide thin films grown via metalorganic-chemical vapor deposition technique at different flow rates

Opto-electronic properties of copper-zinc-sulfide thin films grown via metalorganic-chemical vapor deposition technique at different flow rates

Ultrasound Supported Galvanostatic Deposition of Zn Coatings Reinforced with Nano-, Submicro-, and Micro-SiC Particles—Weak Acidic Chloride Baths

Toward a novel and accurate relationship between electrical and optical conductivity in opto-material sciences: New strategy

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