Correlation between the emission properties of Sn²⁺ center and the chemical composition of ZnO–P₂O₅ glasses

• TORIMOTO Aya

  Institute for Chemical Research, Kyoto University

• MASAI Hirokazu

  Institute for Chemical Research, Kyoto University

• TOKUDA Yomei

  Institute for Chemical Research, Kyoto University

• YANAGIDA Takayuki

  Graduate School of Materials Science, Nara Institute of Science and Technology

• OKADA Go

  Graduate School of Materials Science, Nara Institute of Science and Technology

• MIBU Ko

  Department of Engineering Physics, Electronics, and Mechanics, Graduate School of Engineering, Nagoya Institute of Technology

Bibliographic Information

Other Title

• Correlation between the emission properties of Sn²⁺ center and the chemical composition of ZnO–P₂O₅ glasses
• Correlation between the emission properties of Sn2+ center and the chemical composition of ZnO-P2O5 glasses

Abstract

Photoluminescence (PL) properties of Sn-doped zinc phosphate (Sn:xZP) glasses with different chemical compositions are investigated. Sn exists only in the form of Sn²⁺ in Sn:xZP glasses, which were prepared by a conventional melt-quenching method in Ar atmosphere. The glass-transition temperatures, T_g, of the Sn-doped glasses are lower than that of Sn-free glasses, and the change in the T_g values of Sn-doped glasses increases with increasing ZnO amount. Since the relative ratio of 4-fold coordinated Sn²⁺ becomes higher with increasing ZnO amount, the coordination state is found to depend significantly on the network structure and not on the optical basicity of the Sn:xZP glasses. The PL bandwidth, indicating the site distribution, becomes narrower as the ZnO amount increases. In addition, the PL decay lifetime in the Zn-rich glass is shorter compared to that of the P₂O₅-rich glasses, implying that the distribution of Sn²⁺ is also associated with the network structure. Thus, the network structure of the host matrix rather than the average optical basicity significantly influences the local structure of Sn²⁺ emission center.

Journal

• Journal of the Ceramic Society of Japan

  Journal of the Ceramic Society of Japan 124 (5), 554-558, 2016

  The Ceramic Society of Japan

Keywords

• Phosphate glass
• Photoluminescence
• Tin
• ZnO

Details

• CRID: 1390282680264517120
• NII Article ID: 130005149960
• DOI: 10.2109/jcersj2.15244
• ISSN: 13486535
• ISSN: 18820743
• Web Site: https://www.jstage.jst.go.jp/article/jcersj2/124/5/124_15244/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • Crossref
  • CiNii Articles
  • KAKEN
• Abstract License Flag: Disallowed