Cr-doped ZnO prepared by electrochemical deposition

C. J. Lan; J. S. Tsay; C. K. Lo; C. A. Lin; J. H. He; R. J. Chung

doi:10.1149/1.3481408

Cr-doped ZnO prepared by electrochemical deposition

C. J. Lan, J. S. Tsay, C. K. Lo, C. A. Lin, J. H. He, R. J. Chung

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

12 Scopus citations

Abstract

This study demonstrated the preparation of a Cr-doped ZnO wurtzite structure without any impurity phases (metallic Zn, Cr, Zn(OH)₂, ZnCrO₄, etc.) via electrodeposition. The surface morphology, lattice structure, Cr content, chemical binding characteristics, and optical properties of the deposits were examined by field-emission-scanning electron microscopy, X-ray diffraction, inductive coupled plasma mass spectroscopy, X-ray photoelectron spectroscopy, UV-visible spectroscopy, and photoluminescence, respectively. Cr-doped ZnO in the shape of hexangular columns appears when the applied potential is equal to or more positive than -1.2 V_SSCE. The thickness of the deposits was within the range of 1.07-2.25 μm. Cr was in its trivalent state in the ZnO lattice. Both the high concentration of Cr ions in baths and the more negative applied potential impede the formation of the ZnO(002) plane. The redshift of the bandgap of the deposits from 3.31 to 3.18 eV occurs after the introduction of Cr impurity into the ZnO lattice. The photoluminescence results show both UV and visible light emissions from the electrodeposited specimens.

Original language	English (US)
Pages (from-to)	D559-D563
Journal	JOURNAL OF THE ELECTROCHEMICAL SOCIETY
Volume	157
Issue number	11
DOIs	https://doi.org/10.1149/1.3481408
State	Published - 2010
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Materials Chemistry
Surfaces, Coatings and Films
Electrochemistry
Renewable Energy, Sustainability and the Environment

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1149/1.3481408

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title = "Cr-doped ZnO prepared by electrochemical deposition",

abstract = "This study demonstrated the preparation of a Cr-doped ZnO wurtzite structure without any impurity phases (metallic Zn, Cr, Zn(OH)2, ZnCrO4, etc.) via electrodeposition. The surface morphology, lattice structure, Cr content, chemical binding characteristics, and optical properties of the deposits were examined by field-emission-scanning electron microscopy, X-ray diffraction, inductive coupled plasma mass spectroscopy, X-ray photoelectron spectroscopy, UV-visible spectroscopy, and photoluminescence, respectively. Cr-doped ZnO in the shape of hexangular columns appears when the applied potential is equal to or more positive than -1.2 VSSCE. The thickness of the deposits was within the range of 1.07-2.25 μm. Cr was in its trivalent state in the ZnO lattice. Both the high concentration of Cr ions in baths and the more negative applied potential impede the formation of the ZnO(002) plane. The redshift of the bandgap of the deposits from 3.31 to 3.18 eV occurs after the introduction of Cr impurity into the ZnO lattice. The photoluminescence results show both UV and visible light emissions from the electrodeposited specimens.",

author = "Lan, {C. J.} and Tsay, {J. S.} and Lo, {C. K.} and Lin, {C. A.} and He, {J. H.} and Chung, {R. J.}",

year = "2010",

doi = "10.1149/1.3481408",

language = "English (US)",

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T1 - Cr-doped ZnO prepared by electrochemical deposition

AU - Lan, C. J.

AU - Tsay, J. S.

AU - Lo, C. K.

AU - Lin, C. A.

AU - He, J. H.

AU - Chung, R. J.

PY - 2010

Y1 - 2010

N2 - This study demonstrated the preparation of a Cr-doped ZnO wurtzite structure without any impurity phases (metallic Zn, Cr, Zn(OH)2, ZnCrO4, etc.) via electrodeposition. The surface morphology, lattice structure, Cr content, chemical binding characteristics, and optical properties of the deposits were examined by field-emission-scanning electron microscopy, X-ray diffraction, inductive coupled plasma mass spectroscopy, X-ray photoelectron spectroscopy, UV-visible spectroscopy, and photoluminescence, respectively. Cr-doped ZnO in the shape of hexangular columns appears when the applied potential is equal to or more positive than -1.2 VSSCE. The thickness of the deposits was within the range of 1.07-2.25 μm. Cr was in its trivalent state in the ZnO lattice. Both the high concentration of Cr ions in baths and the more negative applied potential impede the formation of the ZnO(002) plane. The redshift of the bandgap of the deposits from 3.31 to 3.18 eV occurs after the introduction of Cr impurity into the ZnO lattice. The photoluminescence results show both UV and visible light emissions from the electrodeposited specimens.

AB - This study demonstrated the preparation of a Cr-doped ZnO wurtzite structure without any impurity phases (metallic Zn, Cr, Zn(OH)2, ZnCrO4, etc.) via electrodeposition. The surface morphology, lattice structure, Cr content, chemical binding characteristics, and optical properties of the deposits were examined by field-emission-scanning electron microscopy, X-ray diffraction, inductive coupled plasma mass spectroscopy, X-ray photoelectron spectroscopy, UV-visible spectroscopy, and photoluminescence, respectively. Cr-doped ZnO in the shape of hexangular columns appears when the applied potential is equal to or more positive than -1.2 VSSCE. The thickness of the deposits was within the range of 1.07-2.25 μm. Cr was in its trivalent state in the ZnO lattice. Both the high concentration of Cr ions in baths and the more negative applied potential impede the formation of the ZnO(002) plane. The redshift of the bandgap of the deposits from 3.31 to 3.18 eV occurs after the introduction of Cr impurity into the ZnO lattice. The photoluminescence results show both UV and visible light emissions from the electrodeposited specimens.

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DO - 10.1149/1.3481408

M3 - Article

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SN - 0013-4651

VL - 157

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JO - JOURNAL OF THE ELECTROCHEMICAL SOCIETY

JF - JOURNAL OF THE ELECTROCHEMICAL SOCIETY

IS - 11

ER -

Cr-doped ZnO prepared by electrochemical deposition

Abstract

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UN SDGs

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