Loading...
Please wait, while we are loading the content...
Similar Documents
Multicolor Emission Tuning and Red / Green Ratio Enhancement of Yb 3 + / Er 3 + Codoped KGdF 4 Upconversion Nanoparticles
| Content Provider | Semantic Scholar |
|---|---|
| Author | Qiu, Xionger Lin, Tiejun |
| Copyright Year | 2015 |
| Abstract | Herein, a series of KGdF 4 :Yb/Er upconversion nanoparticles (UCNPs) were synthesized through a one-pot hydrothermal method using polyethylene glycol (PEG) as capping ligands. The phase and microstructure studies show all these as-prepared UCNPs are pure cubic phase and uniformed nanoparticle shape by changing the doped Yb concentration from 18% to 98%. The as-prepared UCNPs can realize themulticolor emissions from yellow to red and the red-to-green (R/G) ratio can be enhanced from 2.05 to 8.35 when Yb varies from 18% to 98%. In addition, the proposed upconversion (UC) mechanisms of these PEGylated UCNPs are investigated in detail. The realization of multicolor tuning and enhanced R/G ratio by only increasing the doping concentration of Yb ions in KGdF 4 host indicates that the PEGylated KGdF 4 :Yb/Er UCNPs can find their application on lighting devices, anticounterfeit technology, and even bioimaging field. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://downloads.hindawi.com/journals/jnm/2015/361957.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
