Powder synthesis and luminescence properties of green emitting Ba2LiSi7-xAlxN12-xOx:Eu2+ phosphor

Takashi Takeda, Kousuke Kato, Hajime Kiyono, Naoto Hirosaki

研究成果: Article

抜粋

Single phase powders of green emitting Ba2LiSi7-xAlxN12-xOx:Eu2+ phosphor were prepared by controlling the starting compositions, annealing conditions and reaction vessels. The emission peak of Ba2LiSi7-xAlxN12-xOx:Eu2+ phosphor shifted from 502 nm to 515 nm depending on the Eu concentration. The intensity was highest with an Eu concentration of 3 at%. The phosphor showed a small thermal quenching of luminescence intensity and the integrated intensities at 200 °C and 300 °C were 100% and 96%, respectively, of the intensity observed at room temperature. The phosphor washed by hydrochloric acid solution showed a high internal quantum efficiency (QE) value of 93% with 400 nm excitation.

元の言語English
記事番号156358
ジャーナルJournal of Alloys and Compounds
850
DOI
出版物ステータスPublished - 2021 1 5

ASJC Scopus subject areas

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

フィンガープリント Powder synthesis and luminescence properties of green emitting Ba<sub>2</sub>LiSi<sub>7-x</sub>Al<sub>x</sub>N<sub>12-x</sub>O<sub>x</sub>:Eu<sup>2+</sup> phosphor' の研究トピックを掘り下げます。これらはともに一意のフィンガープリントを構成します。

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