Photostimulated near-infrared persistent luminescence as a new optical read-out from Cr3+-doped LiGa5O8
Open Access
- 27 March 2013
- journal article
- research article
- Published by Springer Science and Business Media LLC in Scientific Reports
- Vol. 3 (1), 1554
- https://doi.org/10.1038/srep01554
Abstract
In conventional photostimulable storage phosphors, the optical information written by x-ray or ultraviolet irradiation is usually read out as a visible photostimulated luminescence (PSL) signal under the stimulation of a low-energy light with appropriate wavelength. Unlike the transient PSL, here we report a new optical read-out form, photostimulated persistent luminescence (PSPL) in the near-infrared (NIR), from a Cr3+-doped LiGa5O8 NIR persistent phosphor exhibiting a super-long NIR persistent luminescence of more than 1,000 h. An intense PSPL signal peaking at 716 nm can be repeatedly obtained in a period of more than 1,000 h when an ultraviolet-light (250–360 nm) pre-irradiated LiGa5O8:Cr3+ phosphor is repeatedly stimulated with a visible light or a NIR light. The LiGa5O8:Cr3+ phosphor has promising applications in optical information storage, night-vision surveillance, and in vivo bio-imaging.This publication has 24 references indexed in Scilit:
- Persistent luminescence mechanisms: human imagination at workOptical Materials Express, 2012
- Sunlight-activated long-persistent luminescence in the near-infrared from Cr3+-doped zinc gallogermanatesNature Materials, 2011
- Optically Stimulated LuminescencePublished by Wiley ,2011
- Persistent Luminescence in Eu2+-Doped Compounds: A ReviewMaterials, 2010
- Persistent Luminescence Beats the Afterglow: 400 Years of Persistent LuminescenceThe Electrochemical Society Interface, 2009
- Physics and Current Understanding of X-Ray Storage Phosphorsphysica status solidi (a), 2001
- Photostimulable x-ray storage phosphors: a review of present understandingBrazilian Journal of Physics, 1999
- Mechanism of long phosphorescence of SrAl2O4:Eu2+, Dy3+ and CaAl2O4:Eu2+, Nd3+Journal of Luminescence, 1997
- A New Long Phosphorescent Phosphor with High Brightness, SrAl2 O 4 : Eu2 + , Dy3 +Journal of the Electrochemical Society, 1996
- Photostimulated luminescence and thermally stimulated luminescence of some new X-ray storage phosphorsJournal of Physics D: Applied Physics, 1991