Mn-Doped In2O3 Nanoparticles: a Simple Synthesis and Room-Temperature Ferromagnetism

Wongsaprom, Kwanruthai; Jareanboon, Rongnapha; Kingcha, Sirinthon; Pinitsoontorn, Supree; Ponhan, Wichaid

doi:10.1007/s10948-016-3903-6

Cited by 13 publications

(2 citation statements)

References 46 publications

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“…The same result is recorded in ref [40]. Wongsaprom et al [41] attributed the low Mn doping in In 2 O 3 to the substitution of In by Mn ions in the In 2 O 3 matrix. Berardan et al [42] found that the maximum solubility limit of Mn 3+ ions in In 2 O 3 do not exceed 7.5 at.% using sintering process in air.…”

Section: Structural Morphological and Compositional Examinationssupporting

confidence: 83%

Optimal temperature and Mn content for enhancing optical properties and inducing room temperature ferromagnetism of Mn doped In2O3 nanocubes

Awad

Rabia

2022

Appl. Phys. A

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In this strategy, chemical vapor deposition technique is utilized to synthesize undoped and Mn doped In2O3 nanostructures. Temperature effects on oxygen content, doping level and the associated morphological, structural, optical and magnetic properties have been investigated. The surface morphology examinations showed the ability of manganese ions to catalyze the nanoflakes of undoped In2O3 to grow into nanocubes. An appropriate proposal for the growth mechanism has been elucidated. X-ray diffraction proved that Mn doping enhanced the growth of In2O3 along different crystallographic planes with preferred growth of the (222) plane. The strain and dislocation density were decreased while grain sizes were increased with increasing Mn content. The optical analysis showed reduction in transmission that was related to oxygen vacancies in undoped In2O3 and phase separation in doped samples. The optical band gap values were decreased from 3.82 to 3.71 eV with increasing Mn content whereas the refractive index values were increased. The magnetic response elucidated the optimal temperature and Mn content for inducing the room temperature ferromagnetism.

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Section: Structural Morphological and Compositional Examinationssupporting

confidence: 83%

Optimal temperature and Mn content for enhancing optical properties and inducing room temperature ferromagnetism of Mn doped In2O3 nanocubes

Awad

Rabia

2022

Appl. Phys. A

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“…Generally, the semiconductors that exhibit ferromagnetism at room temperature by doping a small quantity of impurity elements such as transition metal ions or magnetic ions [1][2][3] are considered as dilute magnetic semiconductors. The wide band gap oxide semiconductors such as In2O3, SnO2, TiO2 and ZnO shown ferromagnetism when they are doped by a small quantity of impurities [4,5]. Among the different oxide semiconductors, In2O3 is the promising semiconductor that possess peculiar properties that will be highly useful in many electronic device applications such as magneto resistance, gas sensors, touch screens, liquid crystal displays, transparent conducting electrodes, photo diodes, photo catalysis, ultraviolet lasers, and others [6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

A Comprehensive Investigation on Optical and Magnetic Properties of (In1 – xDyx)2O3 Nano Powders Prepared by Solid State Reaction Method

Chebrolu¹,

Nasina²,

Kaleemulla³

et al. 2023

J. Nano- Electron. Phys.

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In this investigation, Dy doped In2O3 nanoparticles were synthesized using solid-state reaction with different concentrations of 2 at.%, 5 at.%, and 9 at.%. From the X-ray diffraction studies, it was observed the powder samples have a cubic bixbyite crystal structure, and crystallites size was in the range of 31 nm to 82 nm. From the scanning electron microscope images, grain size it was measured and it was in the range of 100 nm to 300 nm. The energy dispersive analysis of X-ray (EDAX) spectra revealed that the synthesized nanoparticles are free from impurities. Using diffuse reflectance spectra, the optical band gap was calculated and it increased from 2.89 eV to 2.96 eV with increase of Dy 3+ ions concentration. Photoluminescence spectra shown emission peaks in the visible region of the spectrum when samples were excited with a light source of wavelength 410 nm. At ambient temperature, the pure In2O3 exhibited paramagnetic nature whereas (In1 -xDyx)2O3 nanoparticles shown ferromagnetism.

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Room temperature ferromagnetism in Gd-doped In2O3 nanoparticles obtained by auto-combustion method

Hosamani

Jagadale

Manjanna

et al. 2020

J Mater Sci: Mater Electron

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Mn-Doped In2O3 Nanoparticles: a Simple Synthesis and Room-Temperature Ferromagnetism

Cited by 13 publications

References 46 publications

Optimal temperature and Mn content for enhancing optical properties and inducing room temperature ferromagnetism of Mn doped In2O3 nanocubes

Optimal temperature and Mn content for enhancing optical properties and inducing room temperature ferromagnetism of Mn doped In2O3 nanocubes

A Comprehensive Investigation on Optical and Magnetic Properties of (In1 – xDyx)2O3 Nano Powders Prepared by Solid State Reaction Method

Room temperature ferromagnetism in Gd-doped In2O3 nanoparticles obtained by auto-combustion method

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