Medvedev Vassiliy A, Kolesnikov Ilya E, Olshin Pavel K, Mikhailov Mikhail D, Manshina Alina A, Mamonova Daria V
Institute of Chemistry, Saint Petersburg State University, Saint Petersburg 199034, Russia.
Centre for Optical and Laser Materials Research, Research Park, Saint Petersburg State University, Saint Petersburg 198504, Russia.
Materials (Basel). 2022 Apr 3;15(7):2637. doi: 10.3390/ma15072637.
Optical materials doped with several lanthanides are unique in their properties and are widely used in various fields of science and technology. The study of these systems provides solutions for noncontact thermometry, bioimaging, sensing technology, and others. In this paper, we report on the demonstration of YVO nanoparticles doped with one, two, and three different rare earth ions (Tm, Er, and Nd). We discuss the morphology, structural properties, and luminescence behavior of particles. Luminescence decay kinetics reveal the energy transfer efficiency (up to 78%) for different ions under the selective excitation of individual ions. Thus, we found that the energy transition from Tm is more favorable than from Er while we did not observe any significant energy rearrangement in the samples under the excitation of Nd. The observed strong variation of REI lifetimes makes the suggested nanoparticles promising for luminescent labeling, anticounterfeiting, development of data storage systems, etc.
掺杂多种镧系元素的光学材料具有独特的性质，广泛应用于各种科学技术领域。对这些体系的研究为非接触式测温、生物成像、传感技术等提供了解决方案。在本文中，我们报道了掺杂一种、两种和三种不同稀土离子（铥、铒和钕）的钒酸钇纳米颗粒的演示。我们讨论了颗粒的形态、结构性质和发光行为。发光衰减动力学揭示了在单个离子的选择性激发下不同离子的能量转移效率（高达78%）。因此，我们发现铥的能量跃迁比铒更有利，而在钕的激发下，我们没有观察到样品中有任何明显的能量重排。观察到的稀土离子寿命的强烈变化使得所提出的纳米颗粒在发光标记、防伪、数据存储系统开发等方面具有应用前景。
