Y2O2Se as a potential matrix for optical materials: A novel preparation method and optical properties

Maria S. Tarasenko, Alexander S. Kiryakov, Alexey A. Ryadun, Natalia V. Kuratieva, Pavel E. Plyusnin, Nikolay G. Naumov

Результат исследования: Научные публикации в периодических изданияхстатья

Аннотация

A novel one-step method of preparing Y2O2Se from Y2O3 and Se in a CsCl flux is reported. Pure Y2O2Se and Y2O2Se:1%RE3+ solid solutions were quantitatively prepared and studied. The Y2O2Se sample is stable in air up to 680°C and has a melting point of 2015ºC in an inert atmosphere. Optical properties of Y2O2Se:1% RE3+ samples (RE=Ce – Nd, Sm, Eu, Tb – Yb) were investigated. It was found that Y2O2Se:1%RE (RE=Pr, Nd, Sm, Eu, Tb – Yb) are luminescent at room temperature with characteristic emissions of corresponding ions. Ce3+ or Eu3+ solid solutions are luminescent at 77K and demonstrate quenching at room temperature. The d-f transitions of Ce3+ ions in the Y2O2Se matrix are slightly shifted to lower energies relative to those in the Y2O2S matrix due to the influence of Se2– in the ligand environment of cerium.

Язык оригиналаанглийский
Номер статьи100665
Число страниц10
ЖурналMaterials Today Communications
Том21
DOI
СостояниеОпубликовано - 1 дек 2019

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