Improving the luminescence properties of the near-infrared phosphor Ca<sub>0.8</sub>Sr<sub>0.2</sub>O:Eu<sup>2+</sup><i>via</i> energy transfer and its application in the concentration detection of ethanol solutions
In this work, a near-infrared (NIR) phosphor Ca<sub>0.8</sub>Sr<sub>0.2</sub>O:Eu<sup>2+</sup> was prepared <i>via</i> a solid-state method, and its luminescence properties were improved by co-doping with Ce<sup>3+</sup> ions. The decay curves of Ca<sub>0.8</sub>Sr<sub>0.2</sub>O:Ce<sup>3+</sup>, Eu<sup>2+</sup> confirmed that there was an obvious energy transfer from Ce<sup>3+</sup> to Eu<sup>2+</sup>, which enhanced the quantum efficiency of Ca<sub>0.8</sub>Sr<sub>0.2</sub>O:Eu<sup>2+</sup>. The thermal stability can also be enhanced by introducing Ce, which reduces the probability of non-radiative transitions at elevated temperatures, thereby minimizing electron loss. An NIR light emitting diode (LED) was fabricated by combining a blue LED chip with Ca<sub>0.8</sub>Sr<sub>0.2</sub>O:Ce<sup>3+</sup>, Eu<sup>2+</sup>, which was applied for the concentration detection of ethanol solutions.
Authors
- Xurui Hu
- Ping Du (ORCID: https://orcid.org/0000-0003-1329-790X)
- Panlai Li (ORCID: https://orcid.org/0000-0003-0972-9343)
- Wenge Ding
- Xiaojie Li (ORCID: https://orcid.org/0000-0002-0151-6098)
- Zhijun Wang (ORCID: https://orcid.org/0000-0002-3574-3985)
- Jie Gong (ORCID: https://orcid.org/0000-0001-5897-7023)
- Y. F. Liang
- Mengdi Liu (ORCID: https://orcid.org/0000-0001-6499-3126)
- Yanhong Wei (ORCID: https://orcid.org/0009-0009-0439-6632)
Institutions
- Ningbo University (CN)
- Hebei University (CN)
Publication Details
- Journal
- RSC Advances
- Published
- 2025-01-01
- DOI
- https://doi.org/10.1039/d5ra02418h
- Citations
- 1
- Primary Topic
- Luminescence Properties of Advanced Materials
- Type
- article
- Field-Weighted Citation Impact
- 0.52
Funders
- National Natural Science Foundation of China
- Natural Science Foundation of Hebei Province