Electrodeposition of Bi2Te3 films from basic ammoniacal solutions and their thermoelectric properties

Takanori Hiramoto; Shingo Sugiyama; Yasuhiro Ishimori; Akio Fuwa

doi:10.2320/jinstmet.72.745

Electrodeposition of Bi₂Te₃ films from basic ammoniacal solutions and their thermoelectric properties

Takanori Hiramoto^*, Shingo Sugiyama, Yasuhiro Ishimori, Akio Fuwa

^*Corresponding author for this work

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

4 Citations (Scopus)

Abstract

Using the basic solution made of Bi(NO₃)₃· 5H₂O(4.0 × 10^-3, 4.5 × 10^-3, 5.0 × 10^-3, 6.0 × 10^-3, 7.0 × 10 ^-3 kmol·m^-3), TeO₂: (3.0 × 10 ^-3 kmol.·m^-3) and nitrilotriacetic acid (NTA: 0.1 kmol·m^-3) at pH 9.5, electrochemical deposition of stoichiometric, crystalline Bi₂Te₃ film was carried out at various potential of -0.6, -0.7 and -0.8 V. The experimental results obtained are as follows; (1) Electrochemical experimental condition for crystalline Bi₂Te₃ film deposition is as follows: the basic solution containing Bi(No₃)₃·5H₂O(5.0 × 10^-3kmol·m^-3), TeO₂(3.0 × 10 ^-3kmol·m^-3) and NTA(0.1 kmol·m^-3) at pH 9.5 and deposition potential of -0.6V. (2) Various thermoelectric power properties such as semi-conductor type, electro-conductivity, Seebeck factor and power factor have been measured and evaluated for the crystalline Bi ₂Te₃ and other Bi-Te deposited films, as deposited and after heat-treated. It has been shown those properties of the heat-treated crystalline Bi₂Te₃ film has similar or superior thermo-electric properties with those made by MOCVD or a acidic solution process.

Original language	English
Pages (from-to)	745-750
Number of pages	6
Journal	Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals
Volume	72
Issue number	9
DOIs	https://doi.org/10.2320/jinstmet.72.745
Publication status	Published - 2008 Sept

Keywords

Basic solution
Bismuth telluride
Electro-deposition
Nitrilotriacetic acid
Property evaluation
Thermo-electric power

ASJC Scopus subject areas

Mechanics of Materials
Materials Chemistry
Metals and Alloys
Condensed Matter Physics

Access to Document

10.2320/jinstmet.72.745

Cite this

@article{56ce6117c7604967b7eb1ea599ee1930,

title = "Electrodeposition of Bi2Te3 films from basic ammoniacal solutions and their thermoelectric properties",

abstract = "Using the basic solution made of Bi(NO3)3· 5H2O(4.0 × 10-3, 4.5 × 10-3, 5.0 × 10-3, 6.0 × 10-3, 7.0 × 10 -3 kmol·m-3), TeO2: (3.0 × 10 -3 kmol.·m-3) and nitrilotriacetic acid (NTA: 0.1 kmol·m-3) at pH 9.5, electrochemical deposition of stoichiometric, crystalline Bi2Te3 film was carried out at various potential of -0.6, -0.7 and -0.8 V. The experimental results obtained are as follows; (1) Electrochemical experimental condition for crystalline Bi2Te3 film deposition is as follows: the basic solution containing Bi(No3)3·5H2O(5.0 × 10-3kmol·m-3), TeO2(3.0 × 10 -3kmol·m-3) and NTA(0.1 kmol·m-3) at pH 9.5 and deposition potential of -0.6V. (2) Various thermoelectric power properties such as semi-conductor type, electro-conductivity, Seebeck factor and power factor have been measured and evaluated for the crystalline Bi 2Te3 and other Bi-Te deposited films, as deposited and after heat-treated. It has been shown those properties of the heat-treated crystalline Bi2Te3 film has similar or superior thermo-electric properties with those made by MOCVD or a acidic solution process.",

keywords = "Basic solution, Bismuth telluride, Electro-deposition, Nitrilotriacetic acid, Property evaluation, Thermo-electric power",

author = "Takanori Hiramoto and Shingo Sugiyama and Yasuhiro Ishimori and Akio Fuwa",

year = "2008",

month = sep,

doi = "10.2320/jinstmet.72.745",

language = "English",

volume = "72",

pages = "745--750",

journal = "Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals",

issn = "0021-4876",

publisher = "Japan Institute of Metals (JIM)",

number = "9",

}

TY - JOUR

T1 - Electrodeposition of Bi2Te3 films from basic ammoniacal solutions and their thermoelectric properties

AU - Hiramoto, Takanori

AU - Sugiyama, Shingo

AU - Ishimori, Yasuhiro

AU - Fuwa, Akio

PY - 2008/9

Y1 - 2008/9

N2 - Using the basic solution made of Bi(NO3)3· 5H2O(4.0 × 10-3, 4.5 × 10-3, 5.0 × 10-3, 6.0 × 10-3, 7.0 × 10 -3 kmol·m-3), TeO2: (3.0 × 10 -3 kmol.·m-3) and nitrilotriacetic acid (NTA: 0.1 kmol·m-3) at pH 9.5, electrochemical deposition of stoichiometric, crystalline Bi2Te3 film was carried out at various potential of -0.6, -0.7 and -0.8 V. The experimental results obtained are as follows; (1) Electrochemical experimental condition for crystalline Bi2Te3 film deposition is as follows: the basic solution containing Bi(No3)3·5H2O(5.0 × 10-3kmol·m-3), TeO2(3.0 × 10 -3kmol·m-3) and NTA(0.1 kmol·m-3) at pH 9.5 and deposition potential of -0.6V. (2) Various thermoelectric power properties such as semi-conductor type, electro-conductivity, Seebeck factor and power factor have been measured and evaluated for the crystalline Bi 2Te3 and other Bi-Te deposited films, as deposited and after heat-treated. It has been shown those properties of the heat-treated crystalline Bi2Te3 film has similar or superior thermo-electric properties with those made by MOCVD or a acidic solution process.

AB - Using the basic solution made of Bi(NO3)3· 5H2O(4.0 × 10-3, 4.5 × 10-3, 5.0 × 10-3, 6.0 × 10-3, 7.0 × 10 -3 kmol·m-3), TeO2: (3.0 × 10 -3 kmol.·m-3) and nitrilotriacetic acid (NTA: 0.1 kmol·m-3) at pH 9.5, electrochemical deposition of stoichiometric, crystalline Bi2Te3 film was carried out at various potential of -0.6, -0.7 and -0.8 V. The experimental results obtained are as follows; (1) Electrochemical experimental condition for crystalline Bi2Te3 film deposition is as follows: the basic solution containing Bi(No3)3·5H2O(5.0 × 10-3kmol·m-3), TeO2(3.0 × 10 -3kmol·m-3) and NTA(0.1 kmol·m-3) at pH 9.5 and deposition potential of -0.6V. (2) Various thermoelectric power properties such as semi-conductor type, electro-conductivity, Seebeck factor and power factor have been measured and evaluated for the crystalline Bi 2Te3 and other Bi-Te deposited films, as deposited and after heat-treated. It has been shown those properties of the heat-treated crystalline Bi2Te3 film has similar or superior thermo-electric properties with those made by MOCVD or a acidic solution process.

KW - Basic solution

KW - Bismuth telluride

KW - Electro-deposition

KW - Nitrilotriacetic acid

KW - Property evaluation

KW - Thermo-electric power

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U2 - 10.2320/jinstmet.72.745

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JO - Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals

JF - Nippon Kinzoku Gakkaishi/Journal of the Japan Institute of Metals

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