Magnetic studies on ZnTe:Cr film grown on glass substrate by thermal evaporation method

Soundararajan, D.; Mangalaraj, D.; Nataraj, D.; Dorosinskii, Lev; Santoyo-Salazar, J.; Jeon, H.C.; Kang, Tae Won

doi:10.1016/j.apsusc.2009.04.012

Cited by 15 publications

(3 citation statements)

References 33 publications

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“…Similarity in the binding energy of Te 3d and Cr 2p states may result in mixing of the final states, explaining the width. Similar increased width has been observed in the Te 3d region of ZnTe/Cr films, although the reason was not mentioned . The presence of Cr in the Cr(III) oxidation state was also confirmed by XPS.…”

Section: Resultssupporting

confidence: 66%

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Tubular Nanostructures of Cr₂Te₄O₁₁and Mn₂TeO₆through Room-Temperature Chemical Transformations of Tellurium Nanowires

Sreeprasad¹,

Pradeep²

2011

J. Phys. Chem. C

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Tubular ternary nanostructures of tellurium were made through chemical transformations of tellurium nanowires (Te NWs). These transformations occur through reactions with CrO3 and KMnO4, two of the strongest oxidizing agents. In the case of CrO3, the 1D structure of the NWs remained intact and the morphology changed to hollow wires of Cr2Te4O11, but reaction with KMnO4 resulted in the loss of 1D structure, forming a carbon onion-like object composed of Mn2TeO6. As the reaction proceeded, the crystallinity of the NWs decreased, and the final products were amorphous. The reaction products were characterized using different spectroscopic and microscopic techniques. Time-dependent transmission electron microscopic (TEM) analysis of both of the reaction products showed that first a shell is formed around the NWs. Further reaction results in the formation of hollow structures. During the reaction with CrO3, TEM in the intermediate stages showed that the periphery of the material was amorphous, whereas the inside, where unreacted parts of Te NWs remained, was crystalline with a clear lattice structure. X-ray photoelectron spectroscopy (XPS) as well as Raman spectroscopy showed a redox reaction in both cases. Studies suggest that both redox reactions and nanoscale Kirkendall effect might be involved in the formation mechanism.

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Section: Resultssupporting

confidence: 66%

“…Similar increased width has been observed in the Te 3d region of ZnTe/Cr films, although the reason was not mentioned. 37 The presence of Cr in the Cr(III) oxidation state was also confirmed by XPS. Cr showed features at 577.8 and 587.6 eV corresponding to Cr 2p 3/2 and 2p 1/2 of Cr 2 O 3 .…”

Section: ' Results and Discussionmentioning

confidence: 78%

Tubular Nanostructures of Cr₂Te₄O₁₁and Mn₂TeO₆through Room-Temperature Chemical Transformations of Tellurium Nanowires

Sreeprasad¹,

Pradeep²

2011

J. Phys. Chem. C

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“…The plot between (αhν) 2 and hν is found to have straight line over any part of the optical absorption spectrum, thus supporting the interpretation of direct allowed transition. 26 Extrapolation of the linear portion of the curve to (αhν) 2 = 0 gives the optical band gap value for the films. It is observed that the direct band gap energy for the undoped CdSe is 1.94 and it increases to 1.98 eV when Zn is doped into CdSe.…”

Section: Resultsmentioning

confidence: 99%

Photoelectrochemical Cell Study on Closely Arranged Vertical Nanorod Bundles of CdSe and Zn doped CdSe Films

Soundararajan¹,

Yoon²,

Kwon³

et al. 2010

Bulletin of the Korean Chemical Society

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Closely arranged CdSe and Zn doped CdSe vertical nanorod bundles were grown directly on FTO coated glass by using electrodeposition method. Structural analysis by XRD showed the hexagonal phase without any precipitates related to Zn. FE-SEM image showed end capped vertically aligned nanorods arranged closely. From the UV-vis transmittance spectra, band gap energy was found to vary between 1.94 and 1.98 eV due to the incorporation of Zn. Solar cell parameters were obtained by assembling photoelectrochemical cells using CdSe and CdSe:Zn photoanodes, Pt cathode and polysulfide (1M Na2S + 1M S + 1M NaOH) electrolyte. The efficiency was found to increase from 0.16 to 0.22 upon Zn doping. Electrochemical impedance spectra (EIS) indicate that the charge-transfer resistance on the FTO/CdSe/polysulfide interface was greater than on FTO/CdSe:Zn/polysulfide. Cyclic voltammetry results also indicate that the FTO/ CdSe:Zn/polysulfide showed higher activity towards polysulfide redox reaction than that of FTO/CdSe/polysulfide.

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The structural, electronic, magnetic, and optical properties of the Cr-, Mo-, and W-doped ZnTe alloys

et al. 2020

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Magnetic studies on ZnTe:Cr film grown on glass substrate by thermal evaporation method

Cited by 15 publications

References 33 publications

Tubular Nanostructures of Cr₂Te₄O₁₁and Mn₂TeO₆through Room-Temperature Chemical Transformations of Tellurium Nanowires

Tubular Nanostructures of Cr₂Te₄O₁₁and Mn₂TeO₆through Room-Temperature Chemical Transformations of Tellurium Nanowires

Photoelectrochemical Cell Study on Closely Arranged Vertical Nanorod Bundles of CdSe and Zn doped CdSe Films

The structural, electronic, magnetic, and optical properties of the Cr-, Mo-, and W-doped ZnTe alloys

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Magnetic studies on ZnTe:Cr film grown on glass substrate by thermal evaporation method

Cited by 15 publications

References 33 publications

Tubular Nanostructures of Cr2Te4O11and Mn2TeO6through Room-Temperature Chemical Transformations of Tellurium Nanowires

Tubular Nanostructures of Cr2Te4O11and Mn2TeO6through Room-Temperature Chemical Transformations of Tellurium Nanowires

Photoelectrochemical Cell Study on Closely Arranged Vertical Nanorod Bundles of CdSe and Zn doped CdSe Films

The structural, electronic, magnetic, and optical properties of the Cr-, Mo-, and W-doped ZnTe alloys

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Tubular Nanostructures of Cr₂Te₄O₁₁and Mn₂TeO₆through Room-Temperature Chemical Transformations of Tellurium Nanowires

Tubular Nanostructures of Cr₂Te₄O₁₁and Mn₂TeO₆through Room-Temperature Chemical Transformations of Tellurium Nanowires