Abstract
Some data about colour centres of unactivated and activated CaS and ZnS with various impurities are reported. The stimulation (excited absorption) spectrum of ZnS consists at LNT four groups of band: the band at 2.5–3 eV and complex stimulation bands at 1.6 eV, at 1 eV and at 0.5 eV. The structure of stimulation spectra of CaS is analogous: it consists of an intense band at 2–2.5 eV, and bands at 1.6–1.8 eV and 0.8–1.0 eV. At room temperature the low energy band (at 0.5 eV for ZnS and 0.8–1.0 eV for CaS) does not appear. The excited absorption bands appear at energies above 2 eV. The investigation of non-isothermal relaxation of stimulation permitted us to establish the temperature stability of these stimulation bands.
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.