Structural, optical and magnetic properties of manganese zinc oxide thin films prepared by sol–gel dip coating method

Kayani, Zohra Nazir; Nazir, Fariha; Riaz, Saira; Naseem, Shahzad

doi:10.1016/j.spmi.2015.02.039

Cited by 27 publications

(8 citation statements)

References 21 publications

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“…The three main peaks (100), (002), and (101) in the XRD patterns were observed (Figure 1b). These peaks indicated [20,23] It also showed there were no significant changes in the wurtzite structure after the substitutional incorporation of Mn +2 into ZnO host. [24] However, the (002) diffraction peak was observed stronger compared to the other peaks indicating that the common direction along the c-axis was the preferential growth direction.…”

Section: Structural Propertiesmentioning

confidence: 93%

“…Similar behavior was observed by others for Mn-doped ZnO films synthesized by RF-sputtering in nitrogen gas, [22] and sol gel dip coating method. [20] The strain ( ZZ ) values were calculated using the formula: [8] ZZ =…”

Section: Structural Propertiesmentioning

confidence: 99%

“…[18,19] However, very little research investigated the thickness effect of Mn-doped ZnO thin films that used rf magnetron sputtering method for preparation. [20][21][22] It is worth noting that the Mn-doped ZnO thin film properties have a strong dependence on the thickness parameter. In the literature, for films deposited by rf magnetron sputtering, increasing the thickness improves the crystallinity along with the increase of grain size while the strain, average transmittance, and band gap decrease.…”

Section: Introductionmentioning

confidence: 99%

“…Also, the films preferred the (002) c-axis orientation and crystallized in the wurtzite structure. [20][21][22] This study aims to investigate the influence of thickness on the structural, morphological, and optical properties of 4% Mndoped ZnO thin films. The different coating layers were deposited on glass substrates using the simple and low-cost sol-gel spin coating method.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Thickness Effect on the Properties of 4% Mn‐Doped ZnO Thin Films Grown by Sol‐Gel Spin Coating Deposition

Boukhari

Deghfel

Mahroug

et al. 2021

Macromolecular Symposia

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In this study, the thickness effect of 4% Mn‐doped ZnO thin films on structural, optical, and morphological properties is investigated. The films are deposited on a glass substrate using the sol‐gel spin coating method. Phase analysis indicates that all films have a hexagonal wurtzite structure with a high preferential c‐axis orientation. All structural parameters are significantly influenced by the thickness variations. The optical analysis reveals that transmittance and band gap energy decrease with thickness. A red shift of the absorption edge is noticed. The surface morphology shows a good uniformity for all ZnO films. The surface roughness of the samples increases with film thicknesses. The photoluminescence (PL) spectra show a UV peak at 388 nm with two blue peaks at 438 and 475 nm and a weak green emission peak at 525 nm. A lower PL intensity is noticed by increasing the thickness. The obtained results exhibit similarities in behavior as other methods.

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Section: Structural Propertiesmentioning

confidence: 93%

Section: Structural Propertiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Thickness Effect on the Properties of 4% Mn‐Doped ZnO Thin Films Grown by Sol‐Gel Spin Coating Deposition

Boukhari

Deghfel

Mahroug

et al. 2021

Macromolecular Symposia

View full text Add to dashboard Cite

show abstract

“…RT ferromagnetism is shown by Mn-doped ZnO nanoparticles films which was synthesized by sol-gel dip coating method at different withdrawal speed [95]. As the withdrawal speed of the coating increases, the bandgap of Mn-doped ZnO decreases from 3.74 eV to 2.76 eV and magnetic behavior increases with the thickness of the thin film.…”

Section: Doping In Zno and Ferromagnetismmentioning

confidence: 99%

Nano-Structured Dilute Magnetic Semiconductors for Efficient Spintronics at Room Temperature

et al. 2020

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In recent years, many efforts have been made to develop advanced metal oxide semiconductor nanomaterials with exotic magnetic properties for modern applications w.r.t traditional analogues. Dilute magnetic semiconductor oxides (DMSOs) are promising candidates for superior control over the charge and spin degrees of freedom. DMSOs are transparent, wide band gap materials with induced ferromagnetism in doping, with a minor percentage of magnetic 3d cation to create a long-range antiferromagnetic order. Although significant efforts have been carried out to achieve DMSO with ferromagnetic properties above room temperature, it is a great challenge that still exists. However, TiO2, SnO2, ZnO and In2O3 with wide band gaps of 3.2, 3.6, 3.2 and 2.92 eV, respectively, can host a broad range of dopants to generate various compositions. Interestingly, a reduction in the size of these binary oxides can induce ferromagnetism, even at room temperature, due to the grain boundary, presence of defects and oxygen vacancies. The present review provides a panorama of the structural analysis and magnetic properties of DMSOs based on binary metal oxides nanomaterials with various ferromagnetic or paramagnetic dopants, e.g., Co, V, Fe and Ni, which exhibit enhanced ferromagnetic behaviors at room temperature.

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Targeting Manganese Amidinate and ß‐Ketoiminate Complexes as Precursors for Mn‐Based Thin Film Deposition

Wilken,

Muriqi,

Krusenbaum

et al. 2024

Chemistry A European J

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With a focus on Mn based organometallic compounds with suitable physico‐chemical properties to serve as precursors for chemical vapor deposition (CVD) and atomic layer deposition (ALD) of Mn‐containing materials, systematic synthetic approaches with ligand variation, detailed characterization, and theoretical input from density functional theory (DFT) studies are presented. A series of new homoleptic all‐nitrogen and mixed oxygen/nitrogen‐coordinated Mn(II) complexes bearing the acetamidinate, formamidinate, guanidinate and ß‐ketoiminate ligands have been successfully synthesized for the first time. The specific choice of these ligand classes with changes in structure and coordination sphere and side chain variations result in significant structural differences whereby mononuclear and dinuclear complexes are formed. This was supported by density functional theory (DFT) studies. The compounds were thoroughly characterized by single crystal X‐ray diffraction, magnetic measurements, mass spectrometry and elemental analysis. To evaluate their suitability as precursors for deposition of Mn‐based materials, the thermal properties were investigated in detail. Mn(II) complexes possessing the most promising thermal properties, namely Bis(N,N´‐ditertbutylformamidinato)manganese(II) (IV) and Bis(4‐(isopropylamino)pent‐3‐en‐2‐onato)manganese(II) (ßIII) were used in reactivity studies with DFT to explore their interaction with oxidizing co‐reactants such as oxygen and water which will guide future CVD and ALD process development.

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Structural, optical and magnetic properties of manganese zinc oxide thin films prepared by sol–gel dip coating method

Cited by 27 publications

References 21 publications

Thickness Effect on the Properties of 4% Mn‐Doped ZnO Thin Films Grown by Sol‐Gel Spin Coating Deposition

Thickness Effect on the Properties of 4% Mn‐Doped ZnO Thin Films Grown by Sol‐Gel Spin Coating Deposition

Nano-Structured Dilute Magnetic Semiconductors for Efficient Spintronics at Room Temperature

Targeting Manganese Amidinate and ß‐Ketoiminate Complexes as Precursors for Mn‐Based Thin Film Deposition

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