We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Tunable Emission and Color Temperature of Yb 3+ /Er 3+ /Tm 3+ -Tridoped Y 2 O 3 -ZnO Ceramic Nano-Phosphors Using Er 3+ Concentration and Excitation Pump Power.
- Authors
Xu, Boxu; Song, Chao; Song, Jie; Huang, Rui; Lin, Zhenxu; Zhang, Yi; Lin, Shaomin; Guo, Yanqing; Chen, Guangxu; Song, Jun
- Abstract
In this study, a series of well-crystallized Yb3+/Er3+/Tm3+-tridoped Y2O3-ZnO ceramic nano-phosphors were prepared using sol–gel synthesis, and the phosphor structures were studied using X-ray diffraction, scanning electron microscopy, and thermogravimetric analysis. The phosphors were well crystallized and exhibited a sharp-edged angular crystal structure and mesoporous structure consisting of 270 nm nano-particles. All phosphors generated blue, green, and red emission bands attributed to Tm: 1G4→3H6, Er: 2H11/2 (4S3/2)→4I15/2, and Er: 4F9/2→4I15/2 radiative transitions, respectively. Increasing in luminescent centers, weakening of lattice symmetry, and releasing of dormant rare earth ions can enhance all emissions. Er3+ can obtain energy from Tm3+ to enhance green and red emission. These colors can be tuned by optimizing the doping concentrations of the Er3+ ion. The color coordinates were adjusted by tuning both the Er3+ concentration and excitation laser pump power to shift the color coordinates and correlated color temperature. The findings of this study will broaden the potential practical applications of phosphors.
- Subjects
YTTERBIUM; COLOR temperature; RARE earth ions; LASER pumping; ERBIUM compounds; CERAMICS; RADIATIVE transitions
- Publication
Nanomaterials (2079-4991), 2022, Vol 12, Issue 12, p2107
- ISSN
2079-4991
- Publication type
Article
- DOI
10.3390/nano12122107