Abstract
A series of upconversion materials Er3+/Yb3+ co-doped Sc2(WO4)3 have been prepared by a high-temperature solid-phase method. Under the 980 nm near-infrared laser, the green emission intensity of the up-conversion luminescence is greater than that of the red, and the green light is visible to the naked eyes. When 0.05% Er3+ and 0.1%Yb3+ are doped, the green emission is 27 times more than the red emission. Furthermore, the fluorescence intensity ratio method was used to describe the optical temperature sensor with two thermal coupling energy levels of Er3+ in the range of 303~573 K. At 393 K, the sensitivity of the sample reached the maximum 0.006 8 K-1. Compared with some reported materials, the sensitivity of Sc2(WO)3: Er3+/Yb3+ is higher and it has a better prospect in temperature measurement.
| Translated title of the contribution | Upconversion Luminescence and Temperature Sensing Properties for Sc2(WO4)3: Er3+/Yb3+ |
|---|---|
| Original language | Chinese (Traditional) |
| Pages (from-to) | 91-97 |
| Number of pages | 7 |
| Journal | Chinese Journal of Luminescence |
| Volume | 42 |
| Issue number | 1 |
| DOIs | |
| State | Published - Jan 2021 |
Scopus Subject Areas
- Electronic, Optical and Magnetic Materials
- Radiation
- Condensed Matter Physics
Keywords
- Doping
- Luminescence
- Temperature sensing
- Upconversion materials