Effects of process variable control on the thermoelectric properties of the Zn0.98Ga(Al)0.02O system

Soon Mok Choi; Kyu Hyoung Lee; Kwang Hee Jung; Young Soo Lim; Won Seon Seo

doi:10.1007/s11664-013-2521-3

Effects of process variable control on the thermoelectric properties of the Zn_0.98Ga(Al)_0.02O system

Soon Mok Choi, Kyu Hyoung Lee, Kwang Hee Jung, Young Soo Lim, Won Seon Seo

Department of Materials Science and Engineering

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

8 Citations (Scopus)

Abstract

The main factors influencing the different solubility limits of Al- and Ga-doped ZnO systems are studied. The different thermoelectric properties of Al- and Ga-doped ZnO systems were attributed in prior studies to the different solubility limits and secondary phases of these systems. In this study, the origin of these differences, i.e., the Ga₂O₃(ZnO) ₉ secondary phase, was suppressed by a low-temperature synthesis process for the Zn_0.98Ga_0.02O solid solution. As a result, a novel synthesis process for Zn_0.98Ga_0.02O solid solution without the Ga₂O₃(ZnO)₉ phase was established and the thermoelectric properties with and without the Ga ₂O₃(ZnO)₉ secondary phase were compared. The thermoelectric properties of Zn_0.98Al_0.02O and Zn _0.98Ga_0.02O specimens without Al₂O ₃(ZnO)₉/Ga₂O₃(ZnO)₉ phases were also compared.

Original language	English
Pages (from-to)	2056-2061
Number of pages	6
Journal	Journal of Electronic Materials
Volume	42
Issue number	7
DOIs	https://doi.org/10.1007/s11664-013-2521-3
Publication status	Published - 2013 Jul

Bibliographical note

Funding Information:
This work was supported by a Fundamental R&D Program for Core Technology of Materials (K0006007) Grant funded by the Ministry of Knowledge Economy, South Korea.

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Electrical and Electronic Engineering
Materials Chemistry

Access to Document

10.1007/s11664-013-2521-3

Cite this

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title = "Effects of process variable control on the thermoelectric properties of the Zn0.98Ga(Al)0.02O system",

abstract = "The main factors influencing the different solubility limits of Al- and Ga-doped ZnO systems are studied. The different thermoelectric properties of Al- and Ga-doped ZnO systems were attributed in prior studies to the different solubility limits and secondary phases of these systems. In this study, the origin of these differences, i.e., the Ga2O3(ZnO) 9 secondary phase, was suppressed by a low-temperature synthesis process for the Zn0.98Ga0.02O solid solution. As a result, a novel synthesis process for Zn0.98Ga0.02O solid solution without the Ga2O3(ZnO)9 phase was established and the thermoelectric properties with and without the Ga 2O3(ZnO)9 secondary phase were compared. The thermoelectric properties of Zn0.98Al0.02O and Zn 0.98Ga0.02O specimens without Al2O 3(ZnO)9/Ga2O3(ZnO)9 phases were also compared.",

author = "Choi, {Soon Mok} and Lee, {Kyu Hyoung} and Jung, {Kwang Hee} and Lim, {Young Soo} and Seo, {Won Seon}",

note = "Funding Information: This work was supported by a Fundamental R&D Program for Core Technology of Materials (K0006007) Grant funded by the Ministry of Knowledge Economy, South Korea.",

year = "2013",

month = jul,

doi = "10.1007/s11664-013-2521-3",

language = "English",

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T1 - Effects of process variable control on the thermoelectric properties of the Zn0.98Ga(Al)0.02O system

AU - Choi, Soon Mok

AU - Lee, Kyu Hyoung

AU - Jung, Kwang Hee

AU - Lim, Young Soo

AU - Seo, Won Seon

N1 - Funding Information: This work was supported by a Fundamental R&D Program for Core Technology of Materials (K0006007) Grant funded by the Ministry of Knowledge Economy, South Korea.

PY - 2013/7

Y1 - 2013/7

N2 - The main factors influencing the different solubility limits of Al- and Ga-doped ZnO systems are studied. The different thermoelectric properties of Al- and Ga-doped ZnO systems were attributed in prior studies to the different solubility limits and secondary phases of these systems. In this study, the origin of these differences, i.e., the Ga2O3(ZnO) 9 secondary phase, was suppressed by a low-temperature synthesis process for the Zn0.98Ga0.02O solid solution. As a result, a novel synthesis process for Zn0.98Ga0.02O solid solution without the Ga2O3(ZnO)9 phase was established and the thermoelectric properties with and without the Ga 2O3(ZnO)9 secondary phase were compared. The thermoelectric properties of Zn0.98Al0.02O and Zn 0.98Ga0.02O specimens without Al2O 3(ZnO)9/Ga2O3(ZnO)9 phases were also compared.

AB - The main factors influencing the different solubility limits of Al- and Ga-doped ZnO systems are studied. The different thermoelectric properties of Al- and Ga-doped ZnO systems were attributed in prior studies to the different solubility limits and secondary phases of these systems. In this study, the origin of these differences, i.e., the Ga2O3(ZnO) 9 secondary phase, was suppressed by a low-temperature synthesis process for the Zn0.98Ga0.02O solid solution. As a result, a novel synthesis process for Zn0.98Ga0.02O solid solution without the Ga2O3(ZnO)9 phase was established and the thermoelectric properties with and without the Ga 2O3(ZnO)9 secondary phase were compared. The thermoelectric properties of Zn0.98Al0.02O and Zn 0.98Ga0.02O specimens without Al2O 3(ZnO)9/Ga2O3(ZnO)9 phases were also compared.

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