Synthesis and characterization of bulk cobalt-doped ZnO and their thin films

S. Karamat; R. S. Rawat; P. Lee; T. L. Tan; S. V. Springham; R. V. Ramanujan

doi:10.1007/s10948-013-2128-1

Synthesis and characterization of bulk cobalt-doped ZnO and their thin films

S. Karamat^*, R. S. Rawat, P. Lee, T. L. Tan, S. V. Springham, R. V. Ramanujan

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

(ZnO)_1-x (Co₃O₄) _x≤0.05 thin-film series were deposited in vacuum Ar-O₂ and N₂ environment using the pulsed-laser deposition (PLD) technique. Bulk pellets were prepared by the solid-state reaction technique by mixing ZnO and Co ₃O₄ powder and further utilized for deposition of thin films. XRD patterns of pellets exhibit homogeneous ZnCoO phase formation with no other impurity phases. Single-phase (002) oriented ZnCoO thin films were formed without any cobalt segregation. The cobalt core peaks confirmed the existence of +2 valence state of cobalt in thin-film samples, and the binding energy difference between the cores peaks showed the homogeneous doping of cobalt in ZnO matrix. The magnetic ordering was achieved in thin films samples which were deposited in vacuum and N₂ ambience.

Original language	English
Pages (from-to)	3115-3123
Number of pages	9
Journal	Journal of Superconductivity and Novel Magnetism
Volume	26
Issue number	10
DOIs	https://doi.org/10.1007/s10948-013-2128-1
Publication status	Published - Oct 2013
Externally published	Yes

ASJC Scopus Subject Areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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title = "Synthesis and characterization of bulk cobalt-doped ZnO and their thin films",

abstract = "(ZnO)1-x (Co3O4) x≤0.05 thin-film series were deposited in vacuum Ar-O2 and N2 environment using the pulsed-laser deposition (PLD) technique. Bulk pellets were prepared by the solid-state reaction technique by mixing ZnO and Co 3O4 powder and further utilized for deposition of thin films. XRD patterns of pellets exhibit homogeneous ZnCoO phase formation with no other impurity phases. Single-phase (002) oriented ZnCoO thin films were formed without any cobalt segregation. The cobalt core peaks confirmed the existence of +2 valence state of cobalt in thin-film samples, and the binding energy difference between the cores peaks showed the homogeneous doping of cobalt in ZnO matrix. The magnetic ordering was achieved in thin films samples which were deposited in vacuum and N2 ambience.",

author = "S. Karamat and Rawat, {R. S.} and P. Lee and Tan, {T. L.} and Springham, {S. V.} and Ramanujan, {R. V.}",

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TY - JOUR

T1 - Synthesis and characterization of bulk cobalt-doped ZnO and their thin films

AU - Karamat, S.

AU - Rawat, R. S.

AU - Lee, P.

AU - Tan, T. L.

AU - Springham, S. V.

AU - Ramanujan, R. V.

PY - 2013/10

Y1 - 2013/10

N2 - (ZnO)1-x (Co3O4) x≤0.05 thin-film series were deposited in vacuum Ar-O2 and N2 environment using the pulsed-laser deposition (PLD) technique. Bulk pellets were prepared by the solid-state reaction technique by mixing ZnO and Co 3O4 powder and further utilized for deposition of thin films. XRD patterns of pellets exhibit homogeneous ZnCoO phase formation with no other impurity phases. Single-phase (002) oriented ZnCoO thin films were formed without any cobalt segregation. The cobalt core peaks confirmed the existence of +2 valence state of cobalt in thin-film samples, and the binding energy difference between the cores peaks showed the homogeneous doping of cobalt in ZnO matrix. The magnetic ordering was achieved in thin films samples which were deposited in vacuum and N2 ambience.

AB - (ZnO)1-x (Co3O4) x≤0.05 thin-film series were deposited in vacuum Ar-O2 and N2 environment using the pulsed-laser deposition (PLD) technique. Bulk pellets were prepared by the solid-state reaction technique by mixing ZnO and Co 3O4 powder and further utilized for deposition of thin films. XRD patterns of pellets exhibit homogeneous ZnCoO phase formation with no other impurity phases. Single-phase (002) oriented ZnCoO thin films were formed without any cobalt segregation. The cobalt core peaks confirmed the existence of +2 valence state of cobalt in thin-film samples, and the binding energy difference between the cores peaks showed the homogeneous doping of cobalt in ZnO matrix. The magnetic ordering was achieved in thin films samples which were deposited in vacuum and N2 ambience.

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JF - Journal of Superconductivity and Novel Magnetism

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Synthesis and characterization of bulk cobalt-doped ZnO and their thin films

Abstract

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