Phase diagram of the Ag2SnS3–ZnS pseudobinary system for Ag2ZnSnS4 crystal growth

Akira Nagaoka, Kenji Yoshino, Koichi Kakimoto, Kensuke Nishioka

研究成果: Contribution to journalArticle査読

2 被引用数 (Scopus)

抄録

The phase equilibrium of the Ag2SnS3–ZnS pseudobinary system for the growth of Ag2ZnSnS4 (AZTS) crystals was investigated using the equilibration-quenching technique. The growth mechanism of AZTS follows the peritectic reaction liquid phase + ZnS phase ↔ AZTS phase, which occurs at a composition of ~20 mol% ZnS and a temperature of approximately 700 °C. The AZTS polycrystalline sample was obtained from the stoichiometric melt growth. The kesterite structure of the AZTS sample without secondary phases was identified by a combination of X-ray diffraction and Raman spectroscopy measurements. The electron carrier concentration and conductivity, determined by the Hall effect measurement, were (3.0–6.3) × 1015 cm−3 and (5.6–9.2) × 10−4 S/cm, respectively. The slightly Zn-rich and S-poor composition led to n-type conduction in the AZTS because of the dominant Zn antisites on Ag (ZnAg) and S vacancy (VS) defects. Therefore, this study can make a significant contribution to the research and application of AZTS materials.

本文言語英語
論文番号125967
ジャーナルJournal of Crystal Growth
555
DOI
出版ステータス出版済み - 2 1 2021
外部発表はい

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Inorganic Chemistry
  • Materials Chemistry

フィンガープリント 「Phase diagram of the Ag<sub>2</sub>SnS<sub>3</sub>–ZnS pseudobinary system for Ag<sub>2</sub>ZnSnS<sub>4</sub> crystal growth」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

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