Rühl, Philipp; Wang, Dongni; Garwe, Frank; Müller, Robert; Haase, Markus; Krämer, Karl W.; Paa, Wolfgang; Heintzmann, Rainer; Heinemann, Stefan H.; Stafast, Herbert (2021). Notes on thermometric artefacts by Er3+ luminescence band interference. Journal of luminescence, 232, p. 117860. Elsevier 10.1016/j.jlumin.2020.117860
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Optical thermometry based on the intensity ratio of the 2H11/2 → 4I15/2 (525 nm) and 4S3/2 → 4I15/2 (545 nm) emission of Er3+ provides a powerful tool for microscale temperature sensing. Crystalline β-NaYF4:Er,Yb is an excellent thermometry material for green upconversion emission upon NIR laser excitation. However, interfering 2H9/2 → 4I13/2 emission is observed around 555 nm for continuous-wave laser excitation intensities above 10 W/cm2. In this study, the green Er3+ emission bands are characterized and it is demonstrated how the true sample temperature is determined circumventing possible artefacts.
Item Type: |
Journal Article (Original Article) |
|---|---|
Division/Institute: |
08 Faculty of Science > Department of Chemistry, Biochemistry and Pharmaceutical Sciences (DCBP) |
UniBE Contributor: |
Krämer, Karl |
Subjects: |
500 Science > 530 Physics 500 Science > 540 Chemistry |
ISSN: |
0022-2313 |
Publisher: |
Elsevier |
Language: |
English |
Submitter: |
Karl Krämer |
Date Deposited: |
23 Jun 2021 19:19 |
Last Modified: |
05 Dec 2022 15:51 |
Publisher DOI: |
10.1016/j.jlumin.2020.117860 |
BORIS DOI: |
10.48350/156924 |
URI: |
https://boris.unibe.ch/id/eprint/156924 |
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