Abstract
A luminescent mechanism was constructed for the broad band emission spectra of the X1 phase of the Y2SiO5:Ce phosphor powder. Four Gaussian peaks fit to the cathodoluminescent (CL) and photoluminescent (PL) spectra were attributed to the two different sites (A1 and A2) of the Ce 3+ ion in the host matrix and the difference in orientation of the neighbour ions in the complex crystal structure. Each Ce 3+ site gives rise to transitions from the 5d to the two (therefore two peaks) 4f energy levels ( 2 F5/2 and 2 F7/2 due to crystal field splitting). Energy transfer from other defect levels in the matrix was also observed.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: 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.
