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Kuppan, M.; Kaleemulla, S.; Rao, N. Madhusudhana; Krishna, N. Sai; Begam, M. Rigana; Shobana, M.K.

doi:10.1155/2014/284237

Cited by 37 publications

(8 citation statements)

References 20 publications

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“…It is clear from the above discussion that Ni ions has been incorporated into the SnO 2 lattice and affect the semiconducting properties of the material by increasing the band gap energy. A decrease in optical band gap with increasing Ni concentration has been explained by many groups . However, to the best of our knowledge, very few reports are available in the literature for increase in band gap on increasing Ni dopant level…”

Section: Resultsmentioning

confidence: 96%

“…The experimental efforts on transition‐metal‐doped SnO 2 were accelerated on finding high‐temperature ferromagnetism with giant magnetic moment in transparent Co‐doped SnO 2−δ . Several reports on various techniques are available in literature for the synthesis of Ni‐doped SnO 2 , such as sol–gel, polymeric precursor, pulsed laser deposition, spin coating, hydrothermal, co‐precipitation method, solid‐state reaction, flash evaporation technique, etc. Ni‐doped SnO 2 showed decrease in band gap with increasing Ni‐doping levels and exhibited room‐temperature ferromagnetism .…”

Section: Introductionmentioning

confidence: 99%

“…Several reports on various techniques are available in literature for the synthesis of Ni‐doped SnO 2 , such as sol–gel, polymeric precursor, pulsed laser deposition, spin coating, hydrothermal, co‐precipitation method, solid‐state reaction, flash evaporation technique, etc. Ni‐doped SnO 2 showed decrease in band gap with increasing Ni‐doping levels and exhibited room‐temperature ferromagnetism . Inconsistent results on structural, optical, and magnetic properties could be seen, which might be due to the dependence of the properties on the synthetic procedure and growth conditions.…”

Section: Introductionmentioning

confidence: 99%

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Structural, Optical, and Magnetic Properties of Nickel‐Doped Tin Dioxide Nanoparticles Synthesized by Solvothermal Method

2016

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We have successfully synthesized Sn 1 -x Ni x O 2 (0.05 ≤ x ≤ 0.15) solid solutions in order to study their structural, optical, and magnetic properties at different Ni concentrations. X-ray diffraction showed monophasic and crystalline tetragonal structure. The shifting of peaks toward higher angle is attributed to the incorporation of Ni 2+ ions in SnO 2 host lattice. Particle growth restrained upon Ni-doping and found to be in the range of 8-12 nm. Ni-doped SnO 2 nanoparticles show blue shift in band gap studies, which is found to be in the range of 3.9-4.1 eV. High surface areas have been achieved for these solid solutions, which come out to be 130, 200, 457, 497, and 680 m 2 /g, respectively. The solid solutions exhibit paramagnetic behavior along with antiferromagnetic exchange coupling.R. Riman-contributing editor Manuscript No. 36898.

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Section: Resultsmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Structural, Optical, and Magnetic Properties of Nickel‐Doped Tin Dioxide Nanoparticles Synthesized by Solvothermal Method

2016

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“…It has been understood that, with the increased concentration of dopant species, energy levels or overlapping orbitals increases and width of the band starts to increase, which cause a decrease in the band gap energy. The effect of various dopants to decrease the optical band gap has been explained by many groups who have suggested the alloying effect in the host compound and the presence of some impurity phases as the main cause to affect [16]. Surface morphology of prepared samples was studied by SEM.…”

Section: Resultsmentioning

confidence: 99%

Investigation of Structural, Magnetic, and Optical Properties of ZnO Codoped with Co and Cd

Mustafa

Anjum

Waseem

et al. 2014

Advances in Condensed Matter Physics

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Co and Cd have been codoped in ZnO using a simple solid state reaction technique to synthesize dilute magnetic oxide semiconductors of composition Zn0.9Co0.1−xCdxO (x = 0.0-0.1with an increment of 0.02). Hexagonal wurtzite structure has been obtained for samples up tox = 0.06, using X-ray diffractometry. However, atx = 0.08and 0.1, secondary peak of CdO is observed. Raman spectra of the samples have been obtained in 200–800 cm−1range. UV-VIS spectrophotometer is used to study the optical properties, which shows that band gap energy decreases with the increase in Cd concentration. A weak ferromagnetic behavior was evident which decreased further by adding Cd in the series. Room temperature resistivity measurements performed using four-point probe technique showed that their values lie in the semiconductor range. Structural morphology of the samples has been investigated by a scanning electron microscope and grain size has been determined. Raman spectra and Fourier transform infrared spectroscopy revealed the successful incorporation of Co and Cd ions into the host ZnO lattice.

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“…4. And reported that the observed room temperature ferromagnetism was due to oxygen vacancies [5][6][7][8].The hysteresis loop shows a high coercive field (H c ) of 683 G. The observed magnetic moment is almost equal to that of magnetic moment of Ni doped In 2 O 3 nanoparticles prepared by solid state synthesis route method observed by Peleckis et al [9].…”

Section: Figure 4magnetic Hysteresis Loops (M-h) Of Itoandmentioning

confidence: 87%

Synthesis and characterizations of (In0.90Sn0.05Ni0.05)2O3 nanoparticles using solid state reaction method

Babu¹,

Krishna²,

Kaleemulla³

et al. 2016

AIP Conference Proceedings

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Articles you may be interested in (NPs) were synthesized by solid state reaction method and subjected to study their structural, optical and magnetic properties. The NPs had a size distribution in the range of 40 nm and were identified as the bcc cubic In 2 O 3 by X-ray diffraction (XRD). Optical properties of the samples were studies using UV-Vis-NIR spectrophotometer. Magnetic measurements were carried out at room temperature and at 100 K using vibrating sample magnetometer and found that the ITO nanoparticles were ferromagnetic in nature at room temperature. The strength of the magnetization decreased in ITO nanoparticles when the magnetic measurements carried out at 100 K.

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Structural and Magnetic Properties of Ni DopedSnO2

Cited by 37 publications

References 20 publications

Structural, Optical, and Magnetic Properties of Nickel‐Doped Tin Dioxide Nanoparticles Synthesized by Solvothermal Method

Structural, Optical, and Magnetic Properties of Nickel‐Doped Tin Dioxide Nanoparticles Synthesized by Solvothermal Method

Investigation of Structural, Magnetic, and Optical Properties of ZnO Codoped with Co and Cd

Synthesis and characterizations of (In0.90Sn0.05Ni0.05)2O3 nanoparticles using solid state reaction method

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