Abstract
CaAlSiN3:Eu2+ fine powder phosphors were successfully synthesized from the fully oxidic system CaO/Al2O3/SiO2 using the gas-reduction–nitridation (GRN) method. The GRN reaction was conducted at low temperatures of ∼1370 °C to obtain nitrided precursor powders that could be converted into nearly single-phase CaAlSiN3 by a moderate heat treatment at 1600 °C for 4 h in a N2 atmosphere of 0.92 MPa. Highly efficient CaAlSiN3:Eu2+ red-emitting phosphors were obtained using a fluoride activator, with external quantum efficiencies of up to 72%.
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.
