The blue cooperative up-conversion luminescence in Ca9Yb[VO4]7 ceramic

被引：10

作者：

Guan, Ying ^{[2
]}

Huang, Yanlin ^{[2
]}

Seo, Hyo Jin ^{[1
]}

机构：

[1] Pukyong Natl Univ, Dept Phys, Pusan 608737, South Korea

[2] Soochow Univ, Coll Chem Chem Engn & Mat Sci, Suzhou 215123, Peoples R China

来源：

MATERIALS LETTERS | 2012年 / 89卷

关键词：

Ceramics; Luminescence; Optical materials and properties; Phosphors; GLASS;

D O I：

10.1016/j.matlet.2012.08.056

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Yb3+ stoichiometric ceramic sample Ca9Yb(VO4)(7) was synthesized by the conventional high-temperature solid state reaction. The emission spectra and decay curves of both the near-infrared emission and the cooperative luminescence were measured. The sample presents the bright blue cooperative up-conversion luminescence centered at 480 nm under the excitation of a 976 nm laser diode (LD) at room temperature. The blue emission mechanism was discussed on the pump-power dependent emission intensity and the luminescence lifetimes. The up-conversion is assigned to cooperative de-excitation of Yb3+-Yb3+ pairs. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：126 / 128

页数：3

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