Abstract
Single phase powders of green emitting Ba2LiSi7-xAlxN12-xOx:Eu2+ phosphor were prepared by controlling the starting compositions, annealing conditions and reaction vessels. The emission peak of Ba2LiSi7-xAlxN12-xOx:Eu2+ phosphor shifted from 502 nm to 515 nm depending on the Eu concentration. The intensity was highest with an Eu concentration of 3 at%. The phosphor showed a small thermal quenching of luminescence intensity and the integrated intensities at 200 °C and 300 °C were 100% and 96%, respectively, of the intensity observed at room temperature. The phosphor washed by hydrochloric acid solution showed a high internal quantum efficiency (QE) value of 93% with 400 nm excitation.
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.
