Luminescent materials: probing the excited state of emission centers by spectroscopic methods
Abstract
We review recent methods employed to study the excited state of rare-earth centers in various luminescent and scintillating materials. The focus is on processes that help determine localization of the excited state within the material band gap, namely photoionization and thermally stimulated ionization. Then the tunneling process between the luminescence center and the trapping state is addressed. We describe the experimental implementation of methods recently developed to study these processes. We report theoretical models helping the data interpretation. We also present application to currently investigated materials.
- Publication:
-
Measurement Science and Technology
- Pub Date:
- January 2015
- DOI:
- 10.1088/0957-0233/26/1/012001
- Bibcode:
- 2015MeScT..26a2001M