发光
温度测量
灵敏度(控制系统)
噪音(视频)
材料科学
仪表(计算机编程)
测量不确定度
大气温度范围
工作(物理)
纳米晶
光电子学
纳米技术
物理
计算机科学
热力学
电子工程
量子力学
操作系统
图像(数学)
工程类
人工智能
作者
Thomas P. van Swieten,Andries Meijerink,Freddy T. Rabouw
出处
期刊:ACS Photonics
[American Chemical Society]
日期:2022-03-11
卷期号:9 (4): 1366-1374
被引量:51
标识
DOI:10.1021/acsphotonics.2c00039
摘要
Materials with temperature-dependent luminescence can be used as local thermometers when incorporated in, for example, a biological environment or chemical reactor. Researchers have continuously developed new materials aiming for the highest sensitivity of luminescence to temperature. Although the comparison of luminescent materials based on their temperature sensitivity is convenient, this parameter gives an incomplete description of the potential performance of the materials in applications. Here, we demonstrate how the precision of a temperature measurement with luminescent nanocrystals depends not only on the temperature sensitivity of the nanocrystals but also on their luminescence strength compared to measurement noise and background signal. After first determining the noise characteristics of our instrumentation, we show how the uncertainty of a temperature measurement can be predicted quantitatively. Our predictions match the temperature uncertainties that we extract from repeated measurements, over a wide temperature range (303-473 K), for different CCD readout settings, and for different background levels. The work presented here is the first study that incorporates all of these practical issues to accurately calculate the uncertainty of luminescent nanothermometers. This method will be important for the optimization and development of luminescent nanothermometers.
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