Electrodeposition of ZnTe Film with High Current Efficiency at Low Overpotential from a Citric Acid Bath

Takahiro Ishizaki, Takeshi Ohtomo, Akio Fuwa

Research output: Contribution to journalArticle

24 Citations (Scopus)

Abstract

The cathodic electrodeposition of ZnTe film was studied using an aqueous citric acid bath (pH 4; temperature 368 K) in which Zn(II) and Te(IV) species were dissolved to form Zn(Cit)24- and HTeO 2+ ions, respectively. The deposition mechanism was studied based on cyclic voltammetry. The influence of the deposition potential on the morphology, composition, and structure of the deposited film was also investigated. A smooth, dense polycrystalline ZnTe film with nearly stoichiometric composition was deposited at a constant cathode potential, ranging from -0.80 to -0.60 V vs. Ag/AgCl, from a solution containing 20 mmol dm-3 Zn(II), 0.16 mmol dm-3 Te(IV), 0.25 mol dm -3 H3Cit, and 0.25 mol dm-3 Na3Cit (Cit = C6H5O7). Potentials in this range provided the deposited ZnTe film with high current efficiency (above 98%). During electrodeposition of the nearly stoichiometric crystalline ZnTe, the current density was approximately stationary.

Original languageEnglish
JournalJournal of the Electrochemical Society
Volume151
Issue number3
DOIs
Publication statusPublished - 2004
Externally publishedYes

Fingerprint

citric acid
Citric acid
Electrodeposition
Citric Acid
electrodeposition
high current
baths
Chemical analysis
Cyclic voltammetry
Cathodes
Current density
cathodes
Ions
current density
Crystalline materials
ions
Temperature
temperature

ASJC Scopus subject areas

  • Electrochemistry
  • Surfaces, Coatings and Films
  • Surfaces and Interfaces

Cite this

Electrodeposition of ZnTe Film with High Current Efficiency at Low Overpotential from a Citric Acid Bath. / Ishizaki, Takahiro; Ohtomo, Takeshi; Fuwa, Akio.

In: Journal of the Electrochemical Society, Vol. 151, No. 3, 2004.

Research output: Contribution to journalArticle

@article{12cc6974733e417990a5643bf7277852,
title = "Electrodeposition of ZnTe Film with High Current Efficiency at Low Overpotential from a Citric Acid Bath",
abstract = "The cathodic electrodeposition of ZnTe film was studied using an aqueous citric acid bath (pH 4; temperature 368 K) in which Zn(II) and Te(IV) species were dissolved to form Zn(Cit)24- and HTeO 2+ ions, respectively. The deposition mechanism was studied based on cyclic voltammetry. The influence of the deposition potential on the morphology, composition, and structure of the deposited film was also investigated. A smooth, dense polycrystalline ZnTe film with nearly stoichiometric composition was deposited at a constant cathode potential, ranging from -0.80 to -0.60 V vs. Ag/AgCl, from a solution containing 20 mmol dm-3 Zn(II), 0.16 mmol dm-3 Te(IV), 0.25 mol dm -3 H3Cit, and 0.25 mol dm-3 Na3Cit (Cit = C6H5O7). Potentials in this range provided the deposited ZnTe film with high current efficiency (above 98{\%}). During electrodeposition of the nearly stoichiometric crystalline ZnTe, the current density was approximately stationary.",
author = "Takahiro Ishizaki and Takeshi Ohtomo and Akio Fuwa",
year = "2004",
doi = "10.1149/1.1643738",
language = "English",
volume = "151",
journal = "Journal of the Electrochemical Society",
issn = "0013-4651",
publisher = "Electrochemical Society, Inc.",
number = "3",

}

TY - JOUR

T1 - Electrodeposition of ZnTe Film with High Current Efficiency at Low Overpotential from a Citric Acid Bath

AU - Ishizaki, Takahiro

AU - Ohtomo, Takeshi

AU - Fuwa, Akio

PY - 2004

Y1 - 2004

N2 - The cathodic electrodeposition of ZnTe film was studied using an aqueous citric acid bath (pH 4; temperature 368 K) in which Zn(II) and Te(IV) species were dissolved to form Zn(Cit)24- and HTeO 2+ ions, respectively. The deposition mechanism was studied based on cyclic voltammetry. The influence of the deposition potential on the morphology, composition, and structure of the deposited film was also investigated. A smooth, dense polycrystalline ZnTe film with nearly stoichiometric composition was deposited at a constant cathode potential, ranging from -0.80 to -0.60 V vs. Ag/AgCl, from a solution containing 20 mmol dm-3 Zn(II), 0.16 mmol dm-3 Te(IV), 0.25 mol dm -3 H3Cit, and 0.25 mol dm-3 Na3Cit (Cit = C6H5O7). Potentials in this range provided the deposited ZnTe film with high current efficiency (above 98%). During electrodeposition of the nearly stoichiometric crystalline ZnTe, the current density was approximately stationary.

AB - The cathodic electrodeposition of ZnTe film was studied using an aqueous citric acid bath (pH 4; temperature 368 K) in which Zn(II) and Te(IV) species were dissolved to form Zn(Cit)24- and HTeO 2+ ions, respectively. The deposition mechanism was studied based on cyclic voltammetry. The influence of the deposition potential on the morphology, composition, and structure of the deposited film was also investigated. A smooth, dense polycrystalline ZnTe film with nearly stoichiometric composition was deposited at a constant cathode potential, ranging from -0.80 to -0.60 V vs. Ag/AgCl, from a solution containing 20 mmol dm-3 Zn(II), 0.16 mmol dm-3 Te(IV), 0.25 mol dm -3 H3Cit, and 0.25 mol dm-3 Na3Cit (Cit = C6H5O7). Potentials in this range provided the deposited ZnTe film with high current efficiency (above 98%). During electrodeposition of the nearly stoichiometric crystalline ZnTe, the current density was approximately stationary.

UR - http://www.scopus.com/inward/record.url?scp=1842583300&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=1842583300&partnerID=8YFLogxK

U2 - 10.1149/1.1643738

DO - 10.1149/1.1643738

M3 - Article

VL - 151

JO - Journal of the Electrochemical Society

JF - Journal of the Electrochemical Society

SN - 0013-4651

IS - 3

ER -