Characteristic analysis on the physical properties of nanostructured Mg-doped CdO thin films—Doping concentration effect

Usharani, K.; Balu, A. R.; Nagarethinam, V. S.; Suganya, M.

doi:10.1016/j.pnsc.2015.06.003

Cited by 89 publications

(23 citation statements)

References 32 publications

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“…The increase in E g value with carrier concentration is ascribed to the Moss-Burstein effect, whereas the dopant element increases electrons density in the conduction band thereby liing the Fermi level. 48 According to the quantum connement effect, the bandgap widening takes place when the particle size is decreased, as shown in Fig. 5(B).…”

Section: Optical Propertiesmentioning

confidence: 94%

The structure and photoelectrochemical activity of Cr-doped PbS thin films grown by chemical bath deposition

2020

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Section: Optical Propertiesmentioning

confidence: 94%

The structure and photoelectrochemical activity of Cr-doped PbS thin films grown by chemical bath deposition

2020

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“…5), the optical band gap (E g ) values of the CdO:Ag thin films were estimated by connecting linear portion of the plots to hν axis at α = 0 and compiled in Table 1. The increased band gap values with Ag doping may be attributed to quantum confinement effect according to which widened band gap occurs due to smaller crystallites which due to individual confinement of electrons and holes shift the absorption threshold to shorter wavelength [7].…”

Section: Optical Studiesmentioning

confidence: 99%

“…Literature results showed that dopants with smaller ionic radii than Cd 2+ such as Mg, Mn, Al, and Sn enhanced the structural, optical and electrical properties of CdO [7][8][9][10]. Beside these, metal ions such as Ba [11] and Sr [12] with ionic radii greater than Cd 2+ also influenced the physical properties of CdO.…”

Section: Introductionmentioning

confidence: 99%

CdO:Ag thin films with enhanced visible light photocatalytic activity against metanil yellow

Shanmugavel¹,

Balu²,

Nagarethinam³

et al. 2019

SN Appl. Sci.

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The photodegradation quality of Ag-doped CdO (CdO:Ag) thin films deposited using perfume atomizer has been reported in this paper. Ag concentration in CdO is varied as 0, 1, 2 and 3 wt%, respectively. XRD studies reveal cubic crystal structure for all the CdO:Ag thin films ruling out the presence of any secondary phases and decreased crystallite size was observed with Ag doping. CdO:Ag films surfaces are composed of cauliflower shaped grains and EDX spectra ascertains that Ag has been successfully incorporated into the CdO lattice. Optical band gap tends to increase with increase in Ag concentration. Electrical resistivity showed a decreasing trend with increase in Ag concentration. Photocatalytic tests against metanil yellow confirmed that the Ag-doped CdO films exhibit better degradation efficiency than the undoped film and an efficiency of 84.44% was realized for the 2 wt% Ag-doped CdO catalyst. The recycle tests confirmed the reusable nature of the CdO:Ag catalysts.

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“…Different techniques have been used to fabricate CdMgO thin films such as radio frequency magnetron sputtering [ 19 ], the spray pyrolysis technique [ 20 ], metal organic chemical vapour deposition [ 21 , 22 ], and plasma-assisted molecular beam epitaxy [ 23 ]. However, these techniques are fairly expensive.…”

Section: Introductionmentioning

confidence: 99%

Growth and Investigation of Annealing Effects on Ternary Cd1−xMgxO Nanocomposit Thin Films

et al. 2021

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Thin films of Cd1−xMgxO (CdMgO) (0 ≤ x ≤ 1) were investigated by depositing the films on glass substrates using the co-evaporation technique. The structural, surface morphological, optical, and electrical characteristics of these films were studied as a function of Mg content after annealing at 350 °C. The XRD analysis showed that the deposited films had an amorphous nature. The grain size of the films reduced as the Mg concentration increased, as evidenced by the surface morphology, and EDAX supported the existence of Mg content. It was observed that as the films were annealed, the transmittance of the CdMgO films saw an increase of up to 85%. The blue shift of the absorption edge was observed by the increase of Mg content, which was useful for enhancing the efficiency of solar cells. The optical band gap increased from 2.45 to 6.02 eV as the Mg content increased. With increased Mg content, the refractive index reduced from 2.49 to 1.735, and electrical resistivity increased from 535 Ω cm to 1.57 × 106 Ω cm.

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Characteristic analysis on the physical properties of nanostructured Mg-doped CdO thin films—Doping concentration effect

Cited by 89 publications

References 32 publications

The structure and photoelectrochemical activity of Cr-doped PbS thin films grown by chemical bath deposition

The structure and photoelectrochemical activity of Cr-doped PbS thin films grown by chemical bath deposition

CdO:Ag thin films with enhanced visible light photocatalytic activity against metanil yellow

Growth and Investigation of Annealing Effects on Ternary Cd1−xMgxO Nanocomposit Thin Films

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