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

被引：5

作者：

Tarasenko, Maria S. ^{[1
]}

Kiryakov, Alexander S. ^{[1
,2
]}

Ryadun, Alexey ^{[1
]}

Kuratieva, Natalia, V ^{[1
]}

Plyusnin, Pavel E. ^{[1
]}

Naumov, Nikolay G. ^{[1
,2
]}

机构：

[1] Russian Acad Sci, Siberian Branch, Nikolaev Inst Inorgan Chem, 3 Akad Lavrentiev Ave, Novosibirsk 630090, Russia

[2] Novosibirsk State Univ, 2 Pirogova Str, Novosibirsk 630090, Russia

来源：

MATERIALS TODAY COMMUNICATIONS | 2019年 / 21卷

关键词：

Yttrium oxyselenide; Rare-Earth elements; Luminescence; Upconversion; SOLVOTHERMAL SYNTHESIS; LANTHANUM OXYSULFIDE; CRYSTAL-STRUCTURE; UP-CONVERSION; LUMINESCENCE; TB; EU; FLUORESCENCE; SELENIDE; PR;

D O I：

10.1016/j.mtcomm.2019.100665

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

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 degrees C and has a melting point of 2015 degrees C 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.

引用

页数：10

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