Optical, electrical and sensing properties of In2O3 nanoparticles

Ayeshamariam, A.; Bououdina, M.; Sanjeeviraja, C.

doi:10.1016/j.mssp.2012.12.009

Cited by 81 publications

(56 citation statements)

References 31 publications

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“…Absorption bands arising below the wavenumber 1000 cm À1 in metal oxides are attributed to the interatomic vibrations and additional peaks obtained above the wavenumber 1000 cm À1 could be due to the overtones [35]. The cubic In 2 O 3 had intense absorption peaks around at 603 cm À1 due to the In-O vibrations [36]. The cubic structure of the In 2 O 3 was confirmed by the peaks observed at energy 440-605 cm À1 .…”

Section: Resultsmentioning

confidence: 99%

Magnetic and superconductivity studies on (In1−Fe )2O3 thin films

Krishna

Kaleemulla

Amarendra

et al. 2015

Journal of Alloys and Compounds

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Section: Resultsmentioning

confidence: 99%

Magnetic and superconductivity studies on (In1−Fe )2O3 thin films

Krishna

Kaleemulla

Amarendra

et al. 2015

Journal of Alloys and Compounds

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“…In addition, the broad band at ~ 3450 cm -1 may be assigned to the stretching vibrational mode of an O-H group bonded to the In atom, i.e., In-OH [24]. Thus, FTIR spectroscopy result reveals that the phase formation is complete for the assynthesized In 2 O 3 nanocubes and there is no evidence for the presence of any byproduct (s) in the sample.…”

Section: Structural and Morphological Characteristicsmentioning

confidence: 95%

“…The XRD pattern of the calcinied product is shown in Fig.1(a) The FTIR spectrum of the calcinied product is shown in Fig.1(b).It shows the bands at approximately 424, 561 and 603 cm -1 (inset of Fig.1(b) [23,24]. In addition, the broad band at ~ 3450 cm -1 may be assigned to the stretching vibrational mode of an O-H group bonded to the In atom, i.e., In-OH [24].…”

Section: Structural and Morphological Characteristicsmentioning

confidence: 99%

A Highly Selective and Fast-Responding Hydrogen Sensor based on In2O3 Nanocubes

2016

IJSR

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Abstract:The In 2 O 3 nanocubeswere successfully synthesized without any templates by calcining the In(OH) 3 precursor in air at 300 o C for 2 h and their H 2 sensing characteristics were investigated. The In(OH) 3 precursor was prepared through a wet chemical route at room temperature (27 o C)using InCl 3 ,4H 2 O and NH 4 OHas starting materials.The formation ofIn 2 O 3 nanocubes was confirmed by X-ray diffraction measurement (XRD), X-ray photoelectron spectroscopy (XPS)and transmission electron microscopy (TEM)analysis.The In 2 O 3 nanocubes exhibit excellentH 2 sensing properties such as, high gas response (~130 to 50 ppm H 2 at 325 o C), extremely rapid response (1s), fast recovery (4-5 s), excellent repeatability and good selectivity. Furthermore, the lower detection limit is ~3.87 ppm, which is lower than the permissible explosive limit for H 2 . The experimental results demonstrate the potential of theIn 2 O 3 nanocubes as sensing material in the fabrication of hydrogen sensors.

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“…Broad spectrum because of magnetic active substances contaminated when % of Indium increases electron density around decreases [13][14][15].…”

Section: Citationmentioning

confidence: 99%

Study of Nanomaterials Prepared by Combustion Method Using High Heat Combustion Chamber and Agreement with the Reported Results

Ramasamy¹,

Prabhavathi²,

Nivetha³

et al. 2017

Fluid Mech Open Acc

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Nanocrystalline materials such as Sn doped In 2 O 3 Indium Tin Oxide (ITO) were prepared by this Combustion technique and characterized. Presence of electronic centers in Nanocrystalline ITO is observed from Raman studies and the same has been confirmed by photoluminescence studies. The oxidation properties of ITO were studied by X-ray Diffract meter grain sizes are confirmed by structural studies. As against the expectation of oxide on individual Nano grains of In-Sn alloy, ITO Nano grains grew into faceted Nano grains on heat treatment in air and O 2 atmosphere. The growth of ITO under O 2 atmosphere showed pentagon symmetry. This Nanocrystalline ITO has been studied using Electron paramagnetic resonance (EPR) measurements. Structural studies by X-Ray Diffraction (XRD) showed the presence of dominant β phase with a minor quantity of α phase. In EPR, isotopic chemical shift peaks were observed and they are assigned to originate from the α, β phases of ITO and grain boundary component respectively. From this study, different atomic arrangements were identified in grain boundaries compared to the same within the grain in Nanocrystalline ITO. The atomic arrangement in the grain boundary seems to be somewhat different from regular periodic arrangement whereas inside the grain there is a good periodic arrangement of atoms. Above 5 mol%, Sn ions form correlated clusters, which lead to broadening. These EPR spectra were formed to contain two different components, one from the single isolated ions and the other from the clusters.

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Optical, electrical and sensing properties of In2O3 nanoparticles

Cited by 81 publications

References 31 publications

Magnetic and superconductivity studies on (In1−Fe )2O3 thin films

Magnetic and superconductivity studies on (In1−Fe )2O3 thin films

A Highly Selective and Fast-Responding Hydrogen Sensor based on In2O3 Nanocubes

Study of Nanomaterials Prepared by Combustion Method Using High Heat Combustion Chamber and Agreement with the Reported Results

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