Room temperature cathodoluminescence quenching of Er3+ in AlNOEr

被引：2

作者：

Brien, V ^{[1
]}

Edwards, P. R. ^{[2
]}

Boulet, P. ^{[1
]}

O'Donnell, K. P. ^{[2
]}

机构：

[1] Univ Lorraine, CNRS, UMR 7198, Inst Jean Lamour, Campus Artem,2 Alle Andre Guinier,BP 50840, F-54011 Nancy, France

[2] Univ Strathclyde, SUPA Dept Phys, 107 Rottenrow, Glasgow G4 0NG, Lanark, Scotland

来源：

JOURNAL OF LUMINESCENCE | 2019年 / 205卷

关键词：

Aluminium nitride; Cathodoluminescence; Rare earth; quenching; R; F; sputtering; LUMINESCENCE; FILMS; PHOTOLUMINESCENCE; TERBIUM;

D O I：

10.1016/j.jlumin.2018.09.012

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

This paper reports a cathodoluminescence (CL) spectroscopic study of nanogranular A1N0Er, samples with erbium content, x, in the range 0.5-3.6 at%. A wide range of erbium concentration was studied with the aim of understanding the concentration quenching of CL. The composition of thin films, deposited by radiofrequency reactive magnetron sputtering, was accurately determined by Energy Dispersive X-ray Spectroscopy (EDS). CL emission was investigated in the extended visible spectral range from 350 nm to 850 nm. The critical concentration of luminescent activator Er3+ above which CL quenching occurs is 1%; the corresponding critical distance between Er3+ ions in A1N0Er(x) is about 1.0 nm. The quenching mechanism is discussed. We discount an exchange-mediated interaction in favour of a multipole-multipole phonon-assisted interaction.

引用

页码：97 / 101

页数：5

共 21 条

[1] Concentration quenching of the luminescence from trivalent thulium, terbium, and erbium ions embedded in an AlN matrix [J].