Impact of Noise and Background on Measurement Uncertainties in Luminescence Thermometry
| Autor: | Van Swieten, Thomas P., Meijerink, Andries, Rabouw, Freddy T., Sub Condensed Matter and Interfaces, Sub Inorganic Chemistry and Catalysis, Sub Soft Condensed Matter, Soft Condensed Matter and Biophysics |
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| Přispěvatelé: | Sub Condensed Matter and Interfaces, Sub Inorganic Chemistry and Catalysis, Sub Soft Condensed Matter, Soft Condensed Matter and Biophysics |
| Rok vydání: | 2022 |
| Předmět: |
background
Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials temperature uncertainty statistics Atomic and Molecular Physics Electronic (EM)CCD Optical and Magnetic Materials and Optics Electrical and Electronic Engineering absorption cross section luminescence thermometry Biotechnology |
| Zdroj: | ACS Photonics, 9(4), 1366. American Chemical Society |
| ISSN: | 2330-4022 |
| DOI: | 10.1021/acsphotonics.2c00039 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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