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

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3 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 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.

Original languageEnglish
Pages (from-to)2056-2061
Number of pages6
JournalJournal of Electronic Materials
Volume42
Issue number7
DOIs
Publication statusPublished - 2013 Jul 1

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All Science Journal Classification (ASJC) codes

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

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