Absorption and Emission Spectra of Ni-Doped Glasses and Glass-Ceramics in Connection with Its Co-Ordination Number

• KHONTHON Sasithorn

  School of Ceramic Engineering, Institute of Engineering, Suranaree University of Technology

• MORIMOTO Shigeki

  School of Ceramic Engineering, Institute of Engineering, Suranaree University of Technology

• OHISHI Yasutake

  Department of Future-oriented Basic Science and Materials, Toyota Technological Institute

Bibliographic Information

Other Title

• Ni 含有ガラスと透明結晶化ガラスの光吸収及び発光スペクトルとその配位数との関係

Abstract

The absorption and emission spectra of Ni-doped glasses and transparent glass-ceramics are discussed in relation to its coordination number. The results evidenced that the color changed drastically to deep pink from yellow for the lithium metasilicate crystal based transparent glass-ceramics and to blue from brown for the spinel crystal based transparent glass-ceramics after crystallization, respectively. The absorption spectra of lithium metasilicate and Spinel glasses suggest the existence of a tetrahedral Ni²⁺ ion and a trigonal bipyramid Ni²⁺ ion. On the contrary, tetrahedral Ni²⁺ ions in the lithium metasilicate transparent glass-ceramics and the octahedral Ni²⁺ ion in Spinel transparent glass-ceramics are dominant. The emission at around 580 nm was observed in Spinel transparent glass-ceramics under the excitation of 380 nm, however, a very weak or no emission was observed in the lithium metasilicate glass, lithium metasilicate transparent glass-ceramics and Spinel glass under the excitation of 430 nm. This emission might be due to a ¹T₁(D)→³A₂(F) transition after the excitation from ³A₂(F) to ³T₁(P) of the octahedral Ni²⁺ ions. In addition, only Spinel transparent glass-ceramics exhibits a broad NIR emission at around 1220 nm under the excitation of a 974 nm laser diode. This emission may be due to ³T₂(F)→³A₂(F) transition. It is considered that the tetrahedral Ni²⁺ ion is located between the chains in the lithium metasilicate crystal.<br>

Journal

• Journal of the Ceramic Society of Japan

  Journal of the Ceramic Society of Japan 114 (1333), 791-794, 2006

  The Ceramic Society of Japan

Keywords

• Ni²⁺ ion
• Transparent glass-ceramics
• Absorption spectra
• VIS-NIR emission spectra
• Coordination number

Details

• CRID: 1390001205276833152
• NII Article ID: 110004798362
• NII Book ID: AN10040326
• DOI: 10.2109/jcersj.114.791
• ISSN: 18821022
• ISSN: 09145400
• NDL BIB ID: 8087585
• Web Site: http://id.ndl.go.jp/bib/8087585
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I8087585
• Web Site: http://www.jstage.jst.go.jp/article/jcersj/114/1333/114_1333_791/_pdf
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed