基于石榴石中 Yb3+ 的斯塔克能级的近红外测温仪

IF 1.9 4区材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY

Physica Status Solidi A-applications and Materials Science Pub Date : 2024-07-02 DOI:10.1002/pssa.202400302

Qixuan Zhang, Jumpei Ueda, Ruilin Zheng, Setsuhisa Tanabe

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引用次数: 0

摘要

本研究制备并研究了掺杂 Yb3+ 的 Gd3Al2Ga3O12 石榴石（GAGG）玻尔兹曼温度计。由于 Yb3+ 的斯塔克亚级种群的玻尔兹曼分布，Yb3+ 在 950-1000 nm 和 1000-1050 nm 波长范围内的光致发光峰呈现出相反的温度依赖性，这使得两个 Yb3+ 峰的发光强度比（LIR）可用作发光温度计，在 200 K 时的相对灵敏度为 1.值得注意的是，该 LIR 值在低至 200 K 的温度下仍然遵循阿伦尼乌斯模型。这些结果表明，掺杂 Yb3+ 的 GAGG 温度计可以实现高灵敏度，从而进行精确的温度测量。此外，还首次获得了 Yb3+ 在 GAGG 中各种斯塔克亚级的准确位置。这项研究证实，掺杂 Yb3+ 的 GAGG 温度计在微电子学和生物学领域具有潜在的应用前景。

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Near‐Infrared Thermometer Based on Stark Energy Levels of Yb3+ in Garnet

A Yb3+‐doped Gd3Al2Ga3O12 garnet (GAGG) Boltzmann thermometer is prepared and studied in this work. Due to the Boltzmann distribution of the population of Stark sublevels of Yb3+, the photoluminescence peaks of Yb3+ in the wavelength range of 950–1000 and 1000–1050 nm exhibit opposite temperature dependencies, which makes the luminescence intensity ratio (LIR) of two Yb3+ peaks work as a luminescence thermometer with a relative sensitivity of 1.6% K−1 at 200 K. It is worth nothing that this LIR value still follows the Arrhenius model at temperatures as low as 200 K. In these results, it is suggested that Yb3+‐doped GAGG thermometer can achieve high sensitivity for accurate temperature measurements. In addition, the accurate position of various Stark sublevels of Yb3+ in GAGG is obtained for the first time. In this work, it is confirmed that the Yb3+‐doped GAGG thermometer exhibits potential applications in the fields of microelectronics and biology.

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来源期刊

Physica Status Solidi A-applications and Materials Science 工程技术-材料科学：综合

CiteScore

3.70

自引率

5.00%

发文量

393

审稿时长

2 months

期刊介绍： The physica status solidi (pss) journal group is devoted to the thorough peer review and the rapid publication of new and important results in all fields of solid state and materials physics, from basic science to applications and devices. Among the largest and most established international publications, the pss journals publish reviews, letters and original articles, as regular content as well as in special issues and topical sections.