Concentration Dependent Structural, Morphological, Spectral, Optical and Electrical Properties of Spray Pyrolyzed NiO thin films

Menaka, S. Mani; Umadevi, G.

doi:10.1007/s12633-017-9716-9

Cited by 5 publications

(4 citation statements)

References 33 publications

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“…As can be seen in this table, the lattice constant values of the nickel oxide films deposited with different lithium concentrations are very close to that reported with standard value: 0.417–0.418 nm [ 35 , 36 , 43 ]. The calculated crystallite sizes were in the range from 21.7 nm to 25.2, without any clear trend in size as the concentration of the dopant increases.…”

Section: Resultssupporting

confidence: 87%

“…Since the films present a cubic structure, the lattice parameter (a) can be obtained from the equation [ 43 ]:

where

is the lattice parameter,

is the inter-plane spacing, and h, k, l are the Miller indices of the planes. The inter-plane spacing can be calculated using the Bragg formula [ 43 ]:

where

is the X-ray wavelength (0.1540 nm) and

is the diffraction angle.…”

Section: Resultsmentioning

confidence: 99%

“…Since the films present a cubic structure, the lattice parameter (a) can be obtained from the equation [ 43 ]:

where

is the lattice parameter,

is the inter-plane spacing, and h, k, l are the Miller indices of the planes. The inter-plane spacing can be calculated using the Bragg formula [ 43 ]:

where

is the X-ray wavelength (0.1540 nm) and

is the diffraction angle. The crystallite size D was calculated using the Sherrer’s formula [ 40 , 43 , 44 ]:

where

is the correction factor equal to 0.9,

is the full width at half maximum (FWHM) and

is the diffraction angle.…”

Section: Resultsmentioning

confidence: 99%

“…The inter-plane spacing can be calculated using the Bragg formula [ 43 ]:

where

is the X-ray wavelength (0.1540 nm) and

is the diffraction angle. The crystallite size D was calculated using the Sherrer’s formula [ 40 , 43 , 44 ]:

where

is the correction factor equal to 0.9,

is the full width at half maximum (FWHM) and

is the diffraction angle.…”

Section: Resultsmentioning

confidence: 99%

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Fabrication of Li-Doped NiO Thin Films by Ultrasonic Spray Pyrolysis and Its Application in Light-Emitting Diodes

et al. 2023

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The fabrication of NiO films by different routes is important to extend and improve their applications as hole-transporting layers in organic and inorganic optoelectronic devices. Here, an automated ultrasonic pyrolysis spray method was used to fabricate NiO and Li-doped NiO thin films using nickel acetylacetonate and lithium acetate dihydrate as metal precursor and dimethylformamide as solvent. The effect of the amount of lithium in the precursor solution on the structural, morphological, optical, and electrical properties were studied. XRD results reveal that all the samples are polycrystalline with cubic structure and crystallite sizes in the range of 21 to 25 nm, without any clear trend with the Li doping level. AFM analysis shows that the crystallites form round-shaped aggregates and all the films have low roughness. The optical transmittance of the films reaches values of 60% to 77% with tendency upward as Li content is increased. The electrical study shows that the films are p-type, with the carrier concentration, resistivity, and carrier mobility depending on the lithium doping. NiO:Li (10%) films were successfully incorporated into inorganic light emitting diodes together with Mn-doped ZnS and ZnO:Al films, all deposited on ITO by the same ultrasonic spray pyrolysis technique.

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Section: Resultssupporting

confidence: 87%

“…Since the films present a cubic structure, the lattice parameter (a) can be obtained from the equation [ 43 ]:

where

is the lattice parameter,

is the inter-plane spacing, and h, k, l are the Miller indices of the planes. The inter-plane spacing can be calculated using the Bragg formula [ 43 ]:

where

is the X-ray wavelength (0.1540 nm) and

is the diffraction angle.…”

Section: Resultsmentioning

confidence: 99%

“…Since the films present a cubic structure, the lattice parameter (a) can be obtained from the equation [ 43 ]:

where

is the lattice parameter,

is the inter-plane spacing, and h, k, l are the Miller indices of the planes. The inter-plane spacing can be calculated using the Bragg formula [ 43 ]:

where

is the X-ray wavelength (0.1540 nm) and

is the diffraction angle. The crystallite size D was calculated using the Sherrer’s formula [ 40 , 43 , 44 ]:

where

is the correction factor equal to 0.9,

is the full width at half maximum (FWHM) and

is the diffraction angle.…”

Section: Resultsmentioning

confidence: 99%

“…The inter-plane spacing can be calculated using the Bragg formula [ 43 ]:

where

is the X-ray wavelength (0.1540 nm) and