Bi24Al2O39:Mn5+-磷基单发射比例温度计

IF 3.6 2区物理与天体物理 Q2 PHYSICS, APPLIED

Applied Physics Letters Pub Date : 2025-01-13 DOI:10.1063/5.0243405

Guanghui Li, Xingyu Wu, Xiang Liu, Yue Cao, Xiaoru Jia, Hongyu Lu, Hua Zou

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引用次数: 0

摘要

Bi24Al2O39:Mn5+荧光粉可以在近红外（NIR）区域激发和单次发射，并且可以同时检测到。监测激发辐射使我们能够防止其波动影响发光。单次发射是一种涉及发光强度比的技术，因此激发辐射强度的波动不会影响结果。该技术的优点是不涉及常规方法，不受光色散的影响，因此提供了适合实际应用的可靠结果。利用该方法，研究了Bi24Al2O39:0.5%Mn5+荧光粉在300 ~ 380 K范围内的温度传感特性。在970 nm激发下，在300-330 K的生理温度范围内，最大相对灵敏度为3.54% K−1，在351 K时达到3.98% K−1。优异的温度传感性能和近红外激发和发射性能表明该近红外温度计可用于生物领域。

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Bi24Al2O39:Mn5+-phosphor-based single-emission ratiometric thermometer

Both excitation and single emission of Bi24Al2O39:Mn5+ phosphors are possible in the near-infrared (NIR) region, which can be simultaneously detected. Monitoring the excitation radiation allows us to prevent its fluctuations from affecting the luminescence. Single emission is a technique that involves the luminescence intensity ratio, so fluctuations in the intensity of the excitation radiation do not affect the result. This technique has the advantage of involving conventional methods and is not affected by optical dispersion, so it provides reliable results suitable for practical applications. Using this method, we investigate the temperature-sensing characteristics of Bi24Al2O39:0.5%Mn5+ phosphors from 300 to 380 K. Under 970 nm excitation, the maximal relative sensitivity is 3.54% K−1 in the physiological temperature range (300–330 K) and reaches 3.98% K−1 at 351 K. The excellent temperature sensing and NIR excitation and emission suggest that this NIR thermometer can be used for biological applications.

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来源期刊

Applied Physics Letters 物理-物理：应用

CiteScore

6.40

自引率

10.00%

发文量

1821

审稿时长

1.6 months

期刊介绍： Applied Physics Letters (APL) features concise, up-to-date reports on significant new findings in applied physics. Emphasizing rapid dissemination of key data and new physical insights, APL offers prompt publication of new experimental and theoretical papers reporting applications of physics phenomena to all branches of science, engineering, and modern technology. In addition to regular articles, the journal also publishes invited Fast Track, Perspectives, and in-depth Editorials which report on cutting-edge areas in applied physics. APL Perspectives are forward-looking invited letters which highlight recent developments or discoveries. Emphasis is placed on very recent developments, potentially disruptive technologies, open questions and possible solutions. They also include a mini-roadmap detailing where the community should direct efforts in order for the phenomena to be viable for application and the challenges associated with meeting that performance threshold. Perspectives are characterized by personal viewpoints and opinions of recognized experts in the field. Fast Track articles are invited original research articles that report results that are particularly novel and important or provide a significant advancement in an emerging field. Because of the urgency and scientific importance of the work, the peer review process is accelerated. If, during the review process, it becomes apparent that the paper does not meet the Fast Track criterion, it is returned to a normal track.