Double-sensitivity temperature sensor based on excitation intensity ratio of Eu3+ doped phosphate glass ceramic
Abstract
By high-temperature melting method and thermal treatment technology, the Eu3+ doped phosphate glass ceramic was prepared. The sample's excitation spectra monitored at 646nm were measured at different temperatures. The excitation intensity ratios of the I(7F1)/I(7F0) and I(7F2)/I(7F0) is related to the sample temperature. Based on the excitation intensity ratios of the I(7F1)/I(7F0) and I(7F2)/I(7F0), the maximal relative sensitivities are about 0.00089K‑1 and 0.00196K‑1, and the corresponding temperatures are about ∼162 and ∼450K, respectively. Our research is valuable to explore optical temperature sensor.
- Publication:
-
Optik
- Pub Date:
- February 2020
- DOI:
- 10.1016/j.ijleo.2020.164188
- Bibcode:
- 2020Optik.20464188H
- Keywords:
-
- Luminescence;
- Phosphate;
- Sensor