Integrated interpretation for local structures around rare-earth ions and glass structures of matrix glasses, and its luminescence properties

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K06441
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Inorganic materials/Physical properties
• Research Institution: Aoyama Gakuin University
• Principal Investigator: Fuchi Shingo 青山学院大学, 理工学部, 准教授 (60432241)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: ガラス蛍光体 / 発光効率 / 周辺局所構造 / ガラス構造

Outline of Final Research Achievements

In this study, we synthesized glass phosphors by changing a raw material of an rare-earth ion and a composition of a matrix glass systematically. And luminescence properties of samples were measured. We also investigated a relationship between a local structure around the rare-earth ion and a glass structure of the matrix glass.
It was revealed that a phonon energy of the matrix glass and that around the rare-earth ion influence luminescence properties. Although the relationship between the local structure around the rare-earth ion and the glass structure of the matrix glass was not found, it was indicated that a size of a void and a distribution of the void in the matrix glass affect luminescence properties.

Free Research Field

結晶工学、光電子物性