Abstract
In the luminescence spectrum of a thallium centre in CsCl:Tl crystal, besides two ultraviolet bands of the Tl + ion and two visible bands belonging to the off-centre self-trapped exciton perturbed by the Tl + ion, an additional band peaking at 4.56 eV has been observed at the 6.1 eV excitation. The decay kinetics and polarization of this emission have been studied. On the basis of the results obtained, the 4.56 eV emission is ascribed to a type I (on-centre) self-trapped exciton perturbed by the Tl + ion.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.