Influence of Fe doping on the structural, optical and magnetic properties of ZnS diluted magnetic semiconductor

Saikia, D.; Raland, R. D.; Borah, J. P.

doi:10.1016/j.physe.2016.04.016

Cited by 52 publications

(27 citation statements)

References 30 publications

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“…Therefore, in order to obtain the intrinsic dilute magnetic semiconductors, transition metal doped ZnS has been widely studied by different methods. The carrier type, sulfur vacancy, zinc interstitial defect, and crystallization quality of ZnS can be adjusted by changing the doping elements type and doping amount, controlling the preparation process, so as to effectively control the electrical, magnetic, and optical properties of ZnS [12][13][14][15][16]. Compared with the traditional ways, it can produce many kinds of nanometer powder by hydrothermal method.…”

Section: Introductionmentioning

confidence: 99%

Optical and Magnetic Properties of Ni Doped ZnS Diluted Magnetic Semiconductors Synthesized by Hydrothermal Method

Wei

Zhao

et al. 2017

Journal of Nanomaterials

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Diluted magnetic semiconductors Zn 1− Ni S with different consistency ratio ( = 0, 0.01, 0.03, 0.05, and 0.07) were successfully synthesized by hydrothermal method using ethylenediamine as a modifier. The influence of Ni doping concentration on the microstructure, morphology, and optical and magnetic properties of undoped and Ni doped ZnS nanocrystals was characterized by X-ray diffraction (XRD), high-resolution transmission electron microscopy (HRTEM), X-ray energy dispersive spectrometry (XEDS), ultraviolet-visible spectroscopy (UV-vis), Fourier transform infrared spectroscopy (FT-IR), photoluminescence spectra (PL), and the vibrating sample magnetometer (VSM), respectively. The experiment results show the substitution of Ni 2+ on Zn 2+ sites without changing the hexagonal wurtzite structure of ZnS and generate single-phase Zn 1− Ni S with good crystallization. The lattice constant causes distortion and decreases with the increase of Ni 2+ doped concentration. The appearance of the samples is one-dimensional well-dispersed nanorods. UV-vis spectra reveal the band gap of all Zn 1− Ni S samples greater than that of bulk ZnS (3.67 eV), and blue shift phenomenon occurs. The photoluminescence spectra of undoped and doped samples possess the broad blue emission band in the range of 400-650 nm; the PL intensities of Zn 1− Ni S nanorods increase with the increase of Ni content comparing to pure ZnS and reach maximum for = 0.03. Magnetic measurements indicated that the undoped ZnS samples are superparamagnetic, whereas the doped samples exhibit ferromagnetism.

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Section: Introductionmentioning

confidence: 99%

Optical and Magnetic Properties of Ni Doped ZnS Diluted Magnetic Semiconductors Synthesized by Hydrothermal Method

Wei

Zhao

et al. 2017

Journal of Nanomaterials

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“…FTIR spectra were collected by a Bruker Tensor 27 FTIR spectrometer in the range from 400 to 4000 cm −1 . 21 On the other hand, the ionic radius of Fe 2+ (0.78 Å) is larger than the ionic radius of Zn 2+ thus, when Fe replaced Zn in ZnS, the lattice parameter expands. It is also noticed that, the diffraction peaks of XRD data are broad, which point out a formation of samples with nano structure.…”

Section: Measurementsmentioning

confidence: 99%

“…It is detected that the PL intensity of ZnS decreased and also the peak shifted towards the higher wavelength as the annealed temperature increased due to the size effect. 40 Additionally, Fe doping ZnS nano particles formed by microwave-assisted co-precipitation procedure, 21 emitted PL spectra at 336 nm (UV), 400 nm (violet), and 603 nm (orange) due to band to band emission, Zn-vacancies present at the surface of the nano particles, 36 and 4 T 2 (4 G) to 6 A 1 (6 S) transition of the Fe 3+ ion, 46 respectively. Mural et al 42 shown that the PL spectra of annealed nano ZnS emitted three PL peaks in UV, blue and green attributed to sulfur vacancies and interstitial lattice defects.…”

Section: Optical Propertiesmentioning

confidence: 99%

Effect of doping and changing of the annealing temperature on the structural and optical properties of ZnS

Mohamed

2019

Int J Applied Ceramic Tech

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Nano ZnS doped with Co, Mn, or Fe have been synthesized via thermolysis technique at different annealing temperatures (300, 400, and 500°C). The effect of doping and annealing temperature on the lattice parameter and crystalline size of ZnS are studied in detail by Rietveld refinement method of X‐ray diffraction data. To confirm the formation of a zinc blend structure of annealed and doped ZnS, Fourier‐transform infrared are investigated. The energy gaps of doped and annealed ZnS are determined using ultraviolet spectroscopy technique. Undoped and doped ZnS with Fe emitted violet, blue, and green colors depend on the annealing temperature. Moreover, Mn‐doped ZnS exhibits blue‐green emission, while Co‐doped ZnS has a blue emission only.

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“…that opened up alternative progression for acknowledgment of spintronics devices [17][18][19][20][21][22]. Among these TM ions, Co is the utmost remarkable doping element as it may yield deep levels in the gap region to offer a sustainable means of tuning optical, electrical and magnetic properties to retain both reasonable conductivity and roomtemperature ferromagnetism (RTFM) [23].…”

Section: Introductionmentioning

confidence: 99%

Study of the hydrogenation and re-heating of Co-doped ZnO and In2O3 Nano composites

Mukherji

Mathur

Samariya

et al. 2018

Adv Compos Hybrid Mater

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Nanocomposite samples of zinc oxide (ZnO) and indium oxide (In 2 O 3 ) doped with Co (at 1.5% molar concentration) are synthesized through conventional solid-state reaction technique. These samples are taken in a quartz tube and placed in reduction furnace for post-annealing in the presence of hydrogen for~10 h at around 550°C. The X-ray diffraction (XRD) study confirms the formation of hexagonal wurtzite structure for ZnO, Zn H exhibited a perceptible ferromagnetic behavior at 300 K whereas it overturns significantly after long air sintering. An effort has been made to fit the experiential M-H data of hydrogenated samples to the Bound Magnetic Polaron (BMP) model. MATLAB-based simulations have been performed to validate the homogeneity in particle distribution of the samples evinced through SEM micrographs. A multivariate assessment viz. hierarchical cluster analysis is also executed to corroborate and strengthen the experimental findings of magnetic properties.

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Influence of Fe doping on the structural, optical and magnetic properties of ZnS diluted magnetic semiconductor

Cited by 52 publications

References 30 publications

Optical and Magnetic Properties of Ni Doped ZnS Diluted Magnetic Semiconductors Synthesized by Hydrothermal Method

Optical and Magnetic Properties of Ni Doped ZnS Diluted Magnetic Semiconductors Synthesized by Hydrothermal Method

Effect of doping and changing of the annealing temperature on the structural and optical properties of ZnS

Study of the hydrogenation and re-heating of Co-doped ZnO and In2O3 Nano composites

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