The ultraviolet and visible luminescence of Bi3+ in the orthorhombic perovskite, GdAlO3

被引：30

作者：

Srivastava, A. M. ^{[1
]}

Comanzo, H. A. ^{[1
]}

机构：

[1] GE Global Res, One Res Circle, Niskayuna, NY 12309 USA

来源：

OPTICAL MATERIALS | 2017年 / 63卷

关键词：

GdAlO3; Bi3+; Isolated ion emission; Pair/cluster ion emission; PHOTOLUMINESCENCE PROCESSES; EMISSION; SPECTROSCOPY; DEPENDENCE; CRYSTALS; BI-3; ION; LN;

D O I：

10.1016/j.optmat.2016.05.042

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The spectroscopic properties of the Bi3+ ion as a function of its concentration is examined to clarify the nature of optical transitions that are responsible for the ultraviolet (333 nm) and visible emission of GdAlO3:Bi3+. The UV band which is characterized by small Stokes shift (0.52 eV) is ascribed to emission from isolated Bi3+ ions (P-3(0.1) -> S-1(0) transition). The peak emission wavelength and the width of the visible band depend on the Bi3+ concentration. This emission is ascribed to pairs or cluster of Bi3+ ions in the perovskite lattice. The spectroscopic properties of the pair emission in GdAlO3 are contrasted with the impurity trapped excitonic emission in CaSnO3. A comparative study of the behavior of Bi3+ luminescence in a series of materials with the orthorhombic perovskite structure is presented. (C) 2016 Published by Elsevier B.V.

引用

页码：118 / 121

页数：4

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