Anomalous decays in Nd3+ doped LaAlO3 single crystal

被引：10

作者：

Bednarkiewicz, A. ^{[1
]}

Deren, P. J. ^{[1
]}

Lemanski, K. ^{[1
]}

机构：

[1] Polish Acad Sci, Inst Low Temp & Struct Res, PL-50422 Wroclaw, Poland

来源：

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS | 2015年 / 85卷

关键词：

Neodymium; Luminescence decays; Judd-Ofelt theory; Optical properties; Perovskites; SPECTROSCOPIC CHARACTERIZATION; OPTICAL-PROPERTIES; TM3+ IONS; LAGAO3; EMISSION; LUMINESCENCE; TEMPERATURE; DEPENDENCE; SPECTRA; NDGAO3;

D O I：

10.1016/j.jpcs.2015.05.005

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Luminescence decays of metastable Nd3+:F-4(3/2) level were measured and studied in wide of 10-300 K temperature range and compared with the radiative lifetimes derived from standard Judd-Ofelt theory. Nearly resonant cross-relaxation was found to non-radiatively depopulate the metastable level already in 10 K, whereas above 50 K increased reabsorption of radiation and thermalization of higher Stark component of the F-4(3/2) level occur, which resulted in the Boltzmann population of this metastable Nd3+ level and anomalous increase of luminescence decays with temperature increment. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：102 / 105

页数：4

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