Electrodeposited NiX2 (X= S, Se) thin films for solar cell applications

Anand, T. Joseph Sahaya; Rajan, R.; Warikh, Arm; Razak, SI Abd; Tee, Lau Kok

doi:10.15406/aaoaj.2020.04.00100

Cited by 2 publications

(2 citation statements)

References 41 publications

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“…This confirmed the prospect offered in energy bandgap engineering of cobalt doped zinc selenide by altering deposition time. Similar effects on bandgap due to changes in deposition time using electrodeposition techniques have been reported by [44,[47][48][49][50].…”

Section: Wavelength (Nm)supporting

confidence: 74%

Properties of Electrosynthesized Cobalt Doped Zinc Selenide Thin Films Deposited at Varying Time

Ezenwaka

Okoli²,

Okereke

et al. 2021

Nanoarchitectonics

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Time optimized cobalt-doped zinc selenide thin films have been successfully electrodeposited on fluorine-doped tin oxide substrates. The films were deposited at the varying time of 1 min, 3 mins, and 5 mins respectively. Film thickness, optical, structural, electrical, and morphological properties of the deposited thin films were evaluated. Film thickness estimated using the gravimetric method increased from 294.35 nm to 399.62 nm as deposition time increased. Optical properties showed that the absorbance of the films ranged from 13.58% to 83.15% and was found to increase as deposition time increased. Transmittance ranged from 24.40% to 73.15% and was found to decrease as deposition time increased. The reflectance of the films was found to be low while the energy band gap ranged between 2.10 eV and 2.85 eV. Structural properties confirmed the deposition of ZnSe thin film with crystallite size values that fall between 14.68 nm and 18.60 nm. Dislocation density is ranged from 4.66 × 1015 lines/m2 to 2.97 × 1015 lines/m2 while microstrain ranged between 8.53 × 10-3 and 5.83 × 10-3. Crystallite sizes of the films were found to increase as deposition time increased while dislocation density and microstrain were found to decrease as deposition time increased. Electrical properties showed that the deposited films are semiconducting films with electrical resistivity values of 1.54 × 105 Ω cm-1.83 × 104 Ω cm and electrical conductivity values of 6.30 × 10-6 S/cm-5.47 × 10-5 S/cm. The micrograph of the films showed that the films were made up of nanoparticles and nanofibres of different dimensions. Energy-Dispersive X-Ray Spectroscopy (EDS) spectra of the films confirmed the presence of cobalt, zinc, and selenium.

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Section: Wavelength (Nm)supporting

confidence: 74%

Properties of Electrosynthesized Cobalt Doped Zinc Selenide Thin Films Deposited at Varying Time

Ezenwaka

Okoli²,

Okereke

et al. 2021

Nanoarchitectonics

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“…Similar effects on bandgap due to changes in deposition time using electrodeposition techniques have been reported by Refs. 40 and 41, demonstrating therefore a positive correlation between deposition time and thickness of the film 42 …”

Section: Resultsmentioning

confidence: 87%

Investigation of optical properties of zinc oxide nanofilms deposited by electrodeposition technique

Bakhouche

Bouafia

2023

Opt. Eng.

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.Zinc oxide (ZnO) nanofilms were synthesized by electrochemical deposition from a simple aqueous zinc chloride onto indium tin oxide (ITO) substrate. Chronoamperometry experiments were performed to deposit nanofilms at the cathodic potential −1.0 V and time 5000 s at 70°C. Diffraction measurements of x-ray showed the hexagonal wurtzite structure of the as-grown nanofilms and the preferred orientation was along the (002) axis. A well-defined ZnO morphology was generated under −1.0 V for 1000 s on ITO glass. Atomic force microscopy observations explored the effect of electrode coating technique on the microscale ZnO nanofilms. The optical constants and thickness of nanofilms were determined with high precision using spectroscopic ellipsometry. The measurements of photoluminescence demonstrated two emission peaks; the first of which was related to excitonic emissions at about 392 nm, referring to the band gap of ZnO, and the second was related to oxygen vacancies ionized singly at about 490 nm.

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Electrodeposited NiX2 (X= S, Se) thin films for solar cell applications

Cited by 2 publications

References 41 publications

Properties of Electrosynthesized Cobalt Doped Zinc Selenide Thin Films Deposited at Varying Time

Properties of Electrosynthesized Cobalt Doped Zinc Selenide Thin Films Deposited at Varying Time

Investigation of optical properties of zinc oxide nanofilms deposited by electrodeposition technique

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