Research on optical performance of Ln<sub>2</sub>O<sub>2</sub>S:Er<sup>3+</sup>/Yb<sup>3+</sup> (Ln = La/Gd/Y) phosphors based on different phonon energies
It is crucial to explore the intrinsic mechanisms that influence thermometric sensitivity. This study investigates the optical performance of materials with the same crystal structure but different phonon energies. Ln<sub>2</sub>O<sub>2</sub>S:Er<sup>3+</sup>/Yb<sup>3+</sup> (Ln = La/Gd/Y) phosphors with similar morphology and particle sizes were prepared to systematically study the influence of different phonon energy matrices on optical properties. The intrinsic mechanism was elucidated through the matching degree between the energy gap and phonon energy, Judd-Ofelt (J-O) theory, and quantum dielectric theory. It was ultimately concluded that the combination of high phonon energy with a large Ω<sub>2</sub> and a small Ω<sub>6</sub> is beneficial for enhancing the sensitivity of temperature sensing materials.
Authors
- Junjie Zhang (ORCID: https://orcid.org/0000-0002-1452-4214)
- Renguang Ye (ORCID: https://orcid.org/0009-0000-7327-0675)
- Gongxun Bai (ORCID: https://orcid.org/0000-0001-8851-5508)
- Shilong Zhao (ORCID: https://orcid.org/0000-0003-4304-2019)
- Tianzhi Jiang
- Juan Wang (ORCID: https://orcid.org/0000-0002-2085-3727)
- Xuejiao Wang (ORCID: https://orcid.org/0000-0003-4327-2340)
- Jingtao Zhao
- Shiqing Xu (ORCID: https://orcid.org/0000-0001-6943-7284)
- Lishuo Huang
- Youjie Hua (ORCID: https://orcid.org/0000-0001-9526-134X)
Publication Details
- Journal
- Optics Letters
- Published
- 2024-08-29
- DOI
- https://doi.org/10.1364/ol.534951
- Citations
- 1
- Primary Topic
- Luminescence Properties of Advanced Materials
- Type
- article
- Field-Weighted Citation Impact
- 0.12
Funders
- National Key Research and Development Program of China
- Natural Science Foundation of Zhejiang Province