On the Quenching Mechanism of Ce, Tb Luminescence and Scintillation in Compositionally Disordered (Gd, Y, Yb)3Al2Ga3O12 Garnet Ceramics

Author:

Dubov Valery1ORCID,Kuznetsova Daria1ORCID,Kamenskikh Irina2,Komendo Ilia1ORCID,Malashkevich Georgii3,Ramanenka Andrei3ORCID,Retivov Vasili1ORCID,Talochka Yauheni4,Vasil’ev Andrei5ORCID,Korzhik Mikhail14

Affiliation:

1. National Research Center “Kurchatov Institute”, 123098 Moscow, Russia

2. Faculty of Physics, Lomonosov Moscow State University, 119991 Moscow, Russia

3. B.I. Stepanov Institute of Physics, National Academy of Science of Belarus, Nezalezhnastsi Av.68-2, 220072 Minsk, Belarus

4. Institute for Nuclear Problems, Belarus State University, 11 Bobruiskaya, 220030 Minsk, Belarus

5. Skobeltsyn Institute for Nuclear Physics, Lomonosov Moscow State University, 119991 Moscow, Russia

Abstract

Two series of (Gd, Y, Yb)3Al2Ga3O12 quintuple compounds with a garnet structure and solely doped with Ce and Tb were prepared in the form of ceramics by sintering in oxygen at 1600 °C for two hours and studied for the interaction of activator ions with ytterbium ions entering the matrix. It was shown that the photoluminescence and scintillation of Ce3+ ions are completely suppressed, predominantly by tunneling ionization through the charge transfer state (CTS) of the Ce4+-Yb2+ ions. The photoluminescence of Tb3+ ions is quenched in the presence of ytterbium, but not completely due to the poor resonance conditions of Tb3+ intraconfiguration transitions and the CTS of the single Yb3+ and the CTS of Ce4+-Yb2+ ions. The scintillation in the visible range of both Ce3+- and Tb3+-doped samples is intensely quenched as well, which indicates strong competition from Yb3+ ions to activators in interaction with the Gd substrate.

Publisher

MDPI AG

Subject

Radiology, Nuclear Medicine and imaging,Instrumentation,Atomic and Molecular Physics, and Optics

Reference55 articles.

1. Nd3+ and Yb3+ Germanate and Tellurite Glasses for Fluorescent Solar Energy Collectors;Reisfeld;Chem. Phys. Lett.,1981

2. Efficient Luminescent Solar Concentrators Based on Defectless Organic Glasses Containing Novel Ytterbium Cyanoporphyrazine Complex;Grigoryev;Nanotechnol. Russ.,2012

3. Search of Optimized Trivalent Ytterbium Doped-Inorganic Crystals for Laser Applications;Boulon;J. Alloys Compd.,2002

4. Overview of the Best Yb3+-Doped Laser Crystals;Brenier;J. Alloys Compd.,2001

5. Dieke, G.H., Crosswhite, H.M., and Crosswhite, H. (1968). Spectra and Energy Levels of Rare Earth Ions in Crystals, Interscience.

Cited by 3 articles. 订阅此论文施引文献 订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3