Effect of Co doping in tailoring the crystallite size, surface morphology and optical band gap of CuO thin films prepared via thermal spray pyrolysis

Babu, Md. Majibul Haque; Podder, Jiban; Tofa, Rabeya Rahman; Ali, Lokman

doi:10.1016/j.surfin.2021.101269

Cited by 19 publications

(15 citation statements)

References 66 publications

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“…The transmittance value was (57%), and the increase in transmittance is attributed to the decrease in photon scattering due to crystal defects or an increase in optical transmission [10]. Then the transmittance begins to decrease with an increase in the grafting concentrations to reach the transmittance at the ratio (7 + 7) to reach a value of (55%), which has many applications in electronic devices [4,10]. A decrease in transmittance may be due to an increase in photon scattering by crystal defects.…”

Section: Surface Morphology Studiesmentioning

confidence: 99%

“…Images of figure (4) showed that average of cross section thickness of deposited CuO thin film was (440) nm and for (7%Cd+7%Co) dual-doped CuO thin film was (425)nm. These results showed that the height concentration ratio of doping has almost no effect on the thickness deposition of CuO thin film.…”

Section: Surface Morphology Studiesmentioning

confidence: 99%

“…A decrease in transmittance may be due to an increase in photon scattering by crystal defects. Or, the free absorption of photons may also reduce the optical transmission of thin films grafted with high percentages of metals [4,11]. However, the optical burst gap was determined by plotting (αhυ) 2 versus photon energy (hυ) for the films; As shown in Figure (5).…”

Section: Surface Morphology Studiesmentioning

confidence: 99%

“…Researchers have used many different metals doped CuO thin film to change its semiconducting type from n-type to p-type such as Co doped CuO [4] and Cd doped [5]. In this paper, we use the sol-gel processto introduce Cd-Co ions dual-doped into CuO thin films [6].…”

Section: Introductionmentioning

confidence: 99%

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Investigation (Cd + Co) Co-Loading Impact on Physical Properties of Nano-Structured (CuO) Thin Films

Husien¹

2023

acad. sci. j.

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Pure CuO and (Cd+Co) double doping CuO thin films were produced using the sol-gel method and the spin coating approach, with various (Cd+Co) co-doping concentrations ((1+1), (3+3), (5+5), and (7+7) wt.%) of (Cd+Co). XRD results showed that all prepared pure and metals codoped CuO nanostructured thin films are polycrystalline and have a monoclinic structure with preferred planes on (002) and ( 111) without additional peaks related to Cd and Co. The surface morphology and layer thickness of synthesized thin films were analyzed by field emission Scanning Electron Microscopy. The SEM images showed Agglomerated spherical grains form at high co-doping concentrations. The existence of Cu, Cd, Co, and O elements was confirmed by EDS measurements., The energy gap decreased from 2.139eV to 2.02 eV was investigated by the Tauc's and Davis-Mott relations.

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Section: Surface Morphology Studiesmentioning

confidence: 99%

Section: Surface Morphology Studiesmentioning

confidence: 99%

Section: Surface Morphology Studiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Investigation (Cd + Co) Co-Loading Impact on Physical Properties of Nano-Structured (CuO) Thin Films

Husien¹

2023

acad. sci. j.

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“…Dopants can be included in the CuO matrix to modify its morphology, energy band structure and create lattice defects or vacancies. In the recent past, many researchers have observed drastic changes in CuO thin films due to appropriate impurities such as Co, Mn, Ce Fe, Er, Tb Zn, Li, etc (M. M. H. Babu et al, 2021;B. P. Singh et al, 2020;Bosigo et al, 2022;Gnanasekar et al, 2022;Nesa et al, 2017;Chand et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Unravelling the role of nickel doping on the physical properties of CuO thin films deposited by Spray Pyrolysis and theoretical analysis of nanostructured ZnO/Ni:CuO-based heterojunction solar cells

Daoudi

Jellal

Haddout

et al. 2022

Preprint

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Whereas solar photovoltaic cells are promising for proper power production,their wide deployment is hampered by production costs, material availability and toxicity. One of these materials is CuO, which has great chemical stability as well as interesting physical properties, including a direct band gap, a high absorption coef cient, and p-type conductivity. These properties indicate CuO as an exciting semiconducting material to use an absorber layer in thin lms solar cells. For this speci c reason, this paper focuses on the synthesis of undoped and Ni-doped CuO thin lms by spray pyroly- sis process. Several techniques such as; X-ray diffraction (XRD), Raman spectroscopy, Scanning Electron Microscopy (SEM), Energy dispersive X-ray (EDX) and UV-Visible spectroscopy have been employed to characterize the synthesized samples. The XRD analysis indicated the formation of polycrystalline CuO thin lms and the average crystallite size was decreased from 35 to 20 nm for the samples with x = 0 to 8 at%, respectively. Furthermore, Raman spectroscopy also con rms the single-phase formation of CuO lms. The SEM images demonstrated that the incorporation of Ni in the CuO matrix improved the lms surface. The EDX analysis and the elemental mapping belay the homogeneous distribution of the elements. Moreover, UV-Visible spectroscopy has shown a signi cant expansion in optical energy band gap from 1.45 to 1.53 eV with an increase of Ni concentration. On the other hand, to investigate the impact of Ni-doped CuO on nanos- tructure Ni:CuO/ ZnO-NRs heterojunction solar cell performance, SCAPS-1D software is used. It has been found that, 8% Ni:CuO layer has been revealed as better for nanostructured solar cells. The results of this contribution will provide some vital guidelines for fabricating higher-ef ciency solar cells.

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Highly sensitive pure molybdenum trioxide thin films at a higher annealing temperature for liquefied petroleum gas and humidity sensing at room temperature

et al. 2023

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Effect of Co doping in tailoring the crystallite size, surface morphology and optical band gap of CuO thin films prepared via thermal spray pyrolysis

Cited by 19 publications

References 66 publications

Investigation (Cd + Co) Co-Loading Impact on Physical Properties of Nano-Structured (CuO) Thin Films

Investigation (Cd + Co) Co-Loading Impact on Physical Properties of Nano-Structured (CuO) Thin Films

Unravelling the role of nickel doping on the physical properties of CuO thin films deposited by Spray Pyrolysis and theoretical analysis of nanostructured ZnO/Ni:CuO-based heterojunction solar cells

Highly sensitive pure molybdenum trioxide thin films at a higher annealing temperature for liquefied petroleum gas and humidity sensing at room temperature

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