Abstract
Near-infrared (NIR) persistent luminescent β-Ga2O 3:Cr3 nanowire assemblies were synthesized by a hydrothermal process followed by calcination. The phosphor exhibits more than 4 h afterglow in the wavelength range of 650850 nm after ceasing the ultraviolet light (280360 nm) irradiation. The trap structure and persistent luminescence mechanism were revealed by thermoluminescence measurement. The β-Ga 2O3:Cr3 nanowire assemblies may find applications as identification taggants in security and optical probes in bio-imaging.
| Original language | English |
|---|---|
| Pages (from-to) | 2784-2787 |
| Number of pages | 4 |
| Journal | Journal of Luminescence |
| Volume | 131 |
| Issue number | 12 |
| DOIs | |
| State | Published - Dec 2011 |
| Externally published | Yes |
Bibliographical note
Funding Information:This work was supported by the U.S. Office of Naval Research ( N00014-07-1-0060 ) and the ACS Petroleum Research Fund ( PRF 50265-DN10 ).
Keywords
- Nanowires
- Near infrared (NIR)
- Persistent luminescence from Cr
- β-GaO
ASJC Scopus subject areas
- Biophysics
- Atomic and Molecular Physics, and Optics
- General Chemistry
- Biochemistry
- Condensed Matter Physics