Investigation of Energy Transfer Processes in Downconversion Luminescence in BaY2F8 Crystals with Coactivation by Tb3+–Yb3+ Ions

IF 0.48 Q4 Physics and Astronomy

Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2025-03-18 DOI:10.1134/S1062873824710419

A. M. Zubareva, A. A. Shavelev, A. A. Shakirov, A. K. Ginkel, I. D. Sidorov, A. S. Nizamutdinov

引用次数: 0

Abstract

The spectral and kinetic characteristics of BaY₂F₈ crystals with coactivation by Tb–Yb ions under excitation at a wavelength of 266 nm were studied. Luminescence of Yb³⁺ ions was detected in the NIR spectral range because of charge transfer processes. Studies at low-temperature have not shown the cooperative energy transfer, as well as single-photon processes of direct energy transfer to acceptor ions have been found. The quantum yields were measured, taking values of 70.3, 49.3, and 55.05% for 2, 5, and 10 at % ytterbium ion concentrations, respectively.

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Tb3+ -Yb3 +离子共激活BaY2F8晶体下转换发光能量传递过程的研究

研究了Tb-Yb离子共激活BaY2F8晶体在266 nm激发下的光谱和动力学特性。由于电荷转移过程，在近红外光谱范围内检测到Yb3+离子的发光。低温下的研究未发现协同能量传递，也发现了单光子向受体离子直接传递能量的过程。测量了2、5和10在0%镱离子浓度下的量子产率分别为70.3%、49.3%和55.05%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Bulletin of the Russian Academy of Sciences: Physics Physics and Astronomy-Physics and Astronomy (all)

CiteScore

0.90

自引率

0.00%

发文量

251

期刊介绍： Bulletin of the Russian Academy of Sciences: Physics is an international peer reviewed journal published with the participation of the Russian Academy of Sciences. It presents full-text articles (regular, letters to the editor, reviews) with the most recent results in miscellaneous fields of physics and astronomy: nuclear physics, cosmic rays, condensed matter physics, plasma physics, optics and photonics, nanotechnologies, solar and astrophysics, physical applications in material sciences, life sciences, etc. Bulletin of the Russian Academy of Sciences: Physics focuses on the most relevant multidisciplinary topics in natural sciences, both fundamental and applied. Manuscripts can be submitted in Russian and English languages and are subject to peer review. Accepted articles are usually combined in thematic issues on certain topics according to the journal editorial policy. Authors featured in the journal represent renowned scientific laboratories and institutes from different countries, including large international collaborations. There are globally recognized researchers among the authors: Nobel laureates and recipients of other awards, and members of national academies of sciences and international scientific societies.