Na5Y(WO4)4:Nd3+ 中的近红外发射

IF 0.9 4区物理与天体物理 Q4 PHYSICS, CONDENSED MATTER

Physics of the Solid State Pub Date : 2024-10-02 DOI:10.1134/S1063783424601188

Ashvini Pusdekar, N. S. Ugemuge, R. A. Nafdey, S. V. Moharil

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引用次数: 0

摘要

首次研究了 Na5Y(WO4)4:Nd3+ 中的发光现象。发光位于近红外区域。众所周知的 4F3/2 → 4I9/2 转变导致在 1069 nm 处出现最强烈的线。我们利用 Nd3+ 的能级图来解释激发和发射光谱。激发光谱由各种 f-f 转变产生的大量尖锐谱线组成。外激发光谱中 360 nm 处的一个微弱波段被归属于宿主。尽管 Y-Y 间的距离很大，但当浓度超过 2 摩尔%时，发光会被熄灭。Nd3+ 离子间能量转移的临界距离为 32.85 Å。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Near-Infrared Emission in Na5Y(WO4)4:Nd3+

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Near-Infrared Emission in Na5Y(WO4)4:Nd3+

Luminescence in Na₅Y(WO₄)₄:Nd³⁺ is investigated for the first time. The emission is in the near-infrared region. The well known ⁴F_3/2 → ⁴I_9/2 transition leads to most intense line at 1069 nm. The excitation and emission spectra are interpreted using the energy level diagram of Nd³⁺. The excitation spectrum is made up of a large number of sharp lines attributable to various f–f transitions. A weak band at 360 nm in the ex-citation spectrum is assigned to the host. Notwithstanding large Y–Y distances, the luminescence is quenched at concentrations exceeding 2 mol %. The critical distance for energy transfer among Nd³⁺ ions is found to be 32.85 Å.

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来源期刊

Physics of the Solid State 物理-物理：凝聚态物理

CiteScore

1.70

自引率

0.00%

发文量

审稿时长

2-4 weeks

期刊介绍： Presents the latest results from Russia’s leading researchers in condensed matter physics at the Russian Academy of Sciences and other prestigious institutions. Covers all areas of solid state physics including solid state optics, solid state acoustics, electronic and vibrational spectra, phase transitions, ferroelectricity, magnetism, and superconductivity. Also presents review papers on the most important problems in solid state physics.