Synthesis of green emission upconversion phosphor nanosheets (LaNb2O7) doped with Er3+ and Yb3+

Soichi Takasugi, Riku Iida, Koji Tomita*, Michio Iwaoka, Kiyofumi Katagiri, Minoru Osada, Masato Kakihana

*この研究の対応する著者

研究成果: Article査読

3 被引用数 (Scopus)

抄録

LaNb2O7:Er3+,Yb3+ upconversion (UPC) phosphor nanosheets were prepared by exfoliating a KLaNb2O7:Er3+,Yb3+ layered compound. Highly crystalline nanosheets with a thickness and lateral size of 3.91 nm and approximately 300 nm, respectively, were obtained. The UPC emission intensity of the nanosheets was 7.6 times greater than that of mechanically milled particles (100-500 nm) of bulk KLaNb2O7:Er3+,Yb3+. The UPC emission intensities of the nanosheets dispersed in different solvents (H2O, D2O, CH3OH, CH2Cl2, and CCl4) were measured, and the intensities were observed to decrease in the order CCl4>CH2Cl2>D2O>CH3OH>H2O. Because of the large surface area of the nanosheets, their emission intensity was decreased depending on the solvent's vibrational energy.

本文言語English
ページ(範囲)130-134
ページ数5
ジャーナルJournal of Luminescence
173
DOI
出版ステータスPublished - 2016 5 1
外部発表はい

ASJC Scopus subject areas

  • 原子分子物理学および光学
  • 凝縮系物理学
  • 化学 (全般)
  • 生化学
  • 生物理学

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「Synthesis of green emission upconversion phosphor nanosheets (LaNb<sub>2</sub>O<sub>7</sub>) doped with Er<sup>3+</sup> and Yb<sup>3+</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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