Photoluminescence properties of the magnetoplumbite-type BaMg6Ti6O19:Mn4+ and spinel-type Mg2TiO4:Mn4+

研究成果: Conference contribution

2 被引用数 (Scopus)

抄録

Mn4+-doped magnetoplumbite-type BaMg6Ti6O19 and spinel-type Mg2TiO4 red phosphors were synthesized by a solid-state reaction. BaMg6Ti6O19:Mn4+ and Mg2TiO4:Mn4+ were formed as main and single phase above 1200 ºC, respectively. Although the emission peak of BaMg6Ti6O19:Mn4+ and Mg2TiO4:Mn4+ were almost the same, the excitation peak of BaMg6Ti6O19:Mn4+ and Mg2TiO4:Mn4+ were different. The4A24T1 spin-allowed transition peak of Mg2TiO4:Mn4+ shifted to a shorter wavelength side than that of BaMg6Ti6O19:Mn4+ and 4A2→4T2 transition shifted to a longer wavelength side. The crystal field splitting energy of Mg2TiO4:Mn4+ was lower than that of BaMg6Ti6O19:Mn4+. By the additional of R block, the racah parameter B increased and C decreased. Although the increase of B causes a blue-shift of the emission wavelength and the decrease of C causes a red-shift of the emission wavelength, PL emission wavelength was little different due to the influence of both racah parameter. Thus, it was suggested that the existence of R block results in a difference of photoluminescence properties.

本文言語English
ホスト出版物のタイトルEco-Materials Processing and Design XVII
編集者Jian Feng Yang, Hyung Sun Kim, Tohru Sekino, Wen Bin Cao, Soo Wohn Lee
出版社Trans Tech Publications Ltd
ページ73-78
ページ数6
ISBN(印刷版)9783038357711
DOI
出版ステータスPublished - 2016
イベント17th International Symposium on Eco-Materials Processing and Design, ISEPD 2016 - Haikou, China
継続期間: 2011 1 82011 1 11

出版物シリーズ

名前Materials Science Forum
868
ISSN(印刷版)0255-5476
ISSN(電子版)1662-9752

Other

Other17th International Symposium on Eco-Materials Processing and Design, ISEPD 2016
CountryChina
CityHaikou
Period11/1/811/1/11

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

フィンガープリント 「Photoluminescence properties of the magnetoplumbite-type BaMg<sub>6</sub>Ti<sub>6</sub>O<sub>19</sub>:Mn<sup>4+</sup> and spinel-type Mg<sub>2</sub>TiO<sub>4</sub>:Mn<sup>4+</sup>」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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