Abstract
Bluish-green Ba3Si6O9N4:Eu2+ phosphors were synthesized by Ba3SiO5:Eu2+ precursor and solid-state reaction methods, and their photoluminescence (PL) properties were investigated. A single phase of Ba3Si6O9N4 was formed in the precursor method whereas a mixture of Ba3Si6O9N4 and Ba3Si6O12N2 phases was obtained in the solid-state reaction method. The as-synthesized Ba3Si6O9N4:Eu2+ phosphor exhibited a single band emission centered at 487nm under the excitation of λex=400nm, and the emission intensity increased by ∼20 times when the temperature was reduced from 298 to 10K. The effects of starting material composition, calcination temperature, and Eu2+ doping concentration on the phase formation and PL characteristics were examined. The peak intensity of Ba3Si6O9N4:Eu2+ was about 10% of Ba3Si6O12N2:Eu2+ at 298K, but its thermal stability was comparable to that of Ba3Si6O12N2:Eu2+ in the range of 298–473K.
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.
