Studies on the structure optical and electrical properties of Zn-doped NiO thin films grown by spray pyrolysis

Sharma, Ratnesh; Acharya, Aman Deep; Shrivastava, Sharad; Patidar, Manju Mishra; Gangrade, Mohan; Shripathi, T.; Ganesan, V.

doi:10.1016/j.ijleo.2016.01.050

Cited by 54 publications

(18 citation statements)

References 34 publications

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“…Thangamani and Pushpanathan [50] also reported the decrease in band from 3.70 to 3.58 eV with increasing Zn concentration from 0 to 5% in NiO prepared by chemical precipitation method. Similar observation, i.e., decrease in band gap with increasing Zn concentration, has also been reported for Zn-doped NiO thin film cases [41,[54][55][56]. In contrary to the literature, our study indicated that the band gap of NiO increased from 3.58 to 3.81 eV with increasing of Zn concentration 0 to 7% in Ni 1−x Zn x O/Ni nanocomposites and thereafter the band gap slightly decreases for 10% Zn-doped NiO/Ni sample ( Fig.…”

Section: Optical Propertiessupporting

confidence: 86%

Structural, optical and magnetic properties of Ni1−xZnxO/Ni nanocomposite

et al. 2019

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Ni 1−x Zn x O/Ni nanocomposite samples synthesized by wet chemical method were characterized by X-ray powder diffraction, Fourier Transform Infrared (FTIR) spectrometer, UV-Vis spectrometer and Nine Tesla Physical Property Measurement System (PPMS)-based vibrating sample magnetometer (VSM). XRD spectra contained peaks due to NiO and Ni. Rietveld refinement of XRD data indicated the change in lattice parameter is more than twice in NiO than in Ni suggests that Zn goes more favorably into NiO than in Ni. The band gap of NiO in Ni 1−x Zn x O/Ni samples increased from 3.58 to 3.81 eV with increasing x from 0 to 0.07 and thereafter the band gap slightly decreases. NiO/Ni nanocomposites show strong room temperature ferromagnetism. The ferromagnetic interaction further enhanced with 1% of Zn doping into NiO in NiO/Ni nanocomposite. Beyond this doping concentration, the magnetic interaction does not show any systematic variation. The observation of room temperature ferromagnetism in nanocomposite samples is explained by combining the effect of bound magnetic polaron and the magnetization of system with the distribution of magnetic ions as meagerly dispersed in large clusters. Our study indicated that Ni 0.99 Zn 0.01 O/Ni nanocomposite sample could be useful for magnetic recording device application.

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Section: Optical Propertiessupporting

confidence: 86%

Structural, optical and magnetic properties of Ni1−xZnxO/Ni nanocomposite

et al. 2019

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“…The differences a − a 0 of (111) crystal plane are given by the following relation [6]: where a 0 is the standard lattice parameter of NiO (standard a 0 = 0.4176 nm). The crystallite size of (111) crystal plane for the fabricated NiO thin films was calculated from the Scherer's formula [7]:…”

Section: Methodsmentioning

confidence: 99%

The Deposition Temperature Dependence on the Crystallite Size of NiO Thin Films

Benramache

Chabane

Arif

2020

Materials and Geoenvironment

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AbstractIn this article, we have investigated a fitting proposal model for calculating the crystallite size of pure NiO thin films by varying the structural parameters, such as full width at half-maximum β, lattice parameter a and differences in a − a0. The experimental data of NiO thin films were prepared at several deposition temperatures in the range of 380–460°C. All estimated values of crystallite sizes are proportional to the experimental data. Thus, the measurement of the crystallite size values by this proposed model is compatible with practical measurements qualitative.

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“…The graph in Fig. 3 was plotted according to the following equation [14]: (3) where A is the absorbance, d is the film thickness; T is the transmission spectra of thin films; α is the absorption coefficient values; C is a constant, hv is the photon energy, and Eg is the band gap energy of the semiconductor.…”

Section: Fig 2 -Optical Transmittance Spectra Of Nio Thin Films As Amentioning

confidence: 99%

The film thickness effect on the physical properties of NiO thin films elaborated by Sol-gel method

Benramache

Aoun²,

Arif³

2020

JST

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Recently, semiconductors as oxides metallics are essential compounds for the development of ultra-high frequency components, gas sensors, photocatalyst, optoelectronics, lithium ion microbatteries, enamels, and cathode materials for alkaline batteries. Among these, nickel oxide (NiO) is a semitransparent p-type semiconductor material with a large direct band gap. This material also has a wide range of applications such as gas sensors, photocatalyst, dye-sensitized solar cells, electrochromic coatings, ultraviolet (UV) photo-detector, light weight structural components in aerospace, in ceramic structures, counter electrodes and anode layer of solid, as well as counter electrodes oxide fuel cells [1,2]. Nickel oxide NiO is a part of the transparent conductive oxides (TCO) family. It has potential applications for gas sensors because of its wide band gap (3.6-4.0 eV), and solar cells application due to the p-type semiconducting property. Its application as transparent diodes, transparent transistors, displays and defrosting windows is due to its transparency, and it can also be used for the UV photodetectors and touch screens due to its good responsivity [3-6].

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Studies on the structure optical and electrical properties of Zn-doped NiO thin films grown by spray pyrolysis

Cited by 54 publications

References 34 publications

Structural, optical and magnetic properties of Ni1−xZnxO/Ni nanocomposite

Structural, optical and magnetic properties of Ni1−xZnxO/Ni nanocomposite

The Deposition Temperature Dependence on the Crystallite Size of NiO Thin Films

The film thickness effect on the physical properties of NiO thin films elaborated by Sol-gel method

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