Advanced Optical Materials, volume 8, issue 19, pages 2000507

Smartphone‐Based Luminescent Thermometry via Temperature‐Sensitive Delayed Fluorescence from Gd2O2S:Eu3+

Publication typeJournal Article
Publication date2020-07-19
Quartile SCImago
Q1
Quartile WOS
Q1
Impact factor9
ISSN21951071
Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Abstract
Thermal images generated from infrared radiation are useful for monitoring many processes; however, infrared cameras are orders of magnitude more expensive than their visible counterparts. Methods that allow visible cameras to capture thermal images are therefore of interest. In this contribution, thermal images of a surface coated with an inexpensive inorganic micropowder phosphor are generated from the analysis of a video taken with a smartphone camera. The phosphor is designed to have a temperature‐dependent emission lifetime that is long enough to be determined from the analysis of a 30 frames‐per‐second video recording. This proof‐of‐principle work allows temperatures in the 270–320 K range to be accurately determined with a precision better than 2 K, even in the presence of bright background illuminance up to 1500 lm m−2. In the broader context, this inspires further development of phosphors to bring time‐resolved sensing techniques into lifetime long enough ranges to allow smartphone‐based detection.

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Katumo N. et al. Smartphone‐Based Luminescent Thermometry via Temperature‐Sensitive Delayed Fluorescence from Gd2O2S:Eu3+ // Advanced Optical Materials. 2020. Vol. 8. No. 19. p. 2000507.
GOST all authors (up to 50) Copy
Katumo N., GAO G., Laufer F., Richards B. S., Howard I. A. Smartphone‐Based Luminescent Thermometry via Temperature‐Sensitive Delayed Fluorescence from Gd2O2S:Eu3+ // Advanced Optical Materials. 2020. Vol. 8. No. 19. p. 2000507.
RIS |
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RIS Copy
TY - JOUR
DO - 10.1002/adom.202000507
UR - https://doi.org/10.1002%2Fadom.202000507
TI - Smartphone‐Based Luminescent Thermometry via Temperature‐Sensitive Delayed Fluorescence from Gd2O2S:Eu3+
T2 - Advanced Optical Materials
AU - Katumo, Ngei
AU - Laufer, Felix
AU - Richards, Bryce S.
AU - Howard, Ian A.
AU - GAO, GUOJUN
PY - 2020
DA - 2020/07/19 00:00:00
PB - Wiley
SP - 2000507
IS - 19
VL - 8
SN - 2195-1071
ER -
BibTex |
Cite this
BibTex Copy
@article{2020_Katumo
author = {Ngei Katumo and Felix Laufer and Bryce S. Richards and Ian A. Howard and GUOJUN GAO},
title = {Smartphone‐Based Luminescent Thermometry via Temperature‐Sensitive Delayed Fluorescence from Gd2O2S:Eu3+},
journal = {Advanced Optical Materials},
year = {2020},
volume = {8},
publisher = {Wiley},
month = {jul},
url = {https://doi.org/10.1002%2Fadom.202000507},
number = {19},
pages = {2000507},
doi = {10.1002/adom.202000507}
}
MLA
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MLA Copy
Katumo, Ngei, et al. “Smartphone‐Based Luminescent Thermometry via Temperature‐Sensitive Delayed Fluorescence from Gd2O2S:Eu3+.” Advanced Optical Materials, vol. 8, no. 19, Jul. 2020, p. 2000507. https://doi.org/10.1002%2Fadom.202000507.
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