Abstract
A series of Ba5(B2O5)2F2:xEu3+ (x = 0, 0.02, 0.04, 0.06, 0.08, 0.10, 0.12, 0.14, 0.16, 0.18 and 0.20) phosphors were synthesized for the first time by the high-temperature solid-state reaction method. The polycrystalline powder samples of Ba5(B2O5)2F2 and Ba5(B2O5)2F2:0.14Eu3+ were determined by the X-ray powder diffraction measurement. The optical properties of Ba5(B2O5)2F2:xEu3+ were detected by photoluminescence excitation and emission spectra, CIE chromaticity coordinate, quantum efficiency and attenuation curve. Under near-UV excitation (λex = 394 nm), the phosphors exhibit dominant emission peak at 616 nm and generate bright red light, with the calculated R/O value is 2.65 in Ba5(B2O5)2F2:0.14Eu3+ phosphor. The optimal doping amount of Eu3+ in Ba5(B2O5)2F2:xEu3+ phosphors is x = 0.14 for the maximum emission. With a relatively high quantum efficiency of 40.83%, Ba5(B2O5)2F2:0.14Eu3+ red emitting luminescent material is probably a promising candidate for near-UV-based white LEDs application.
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 callMore From: Journal of Materials Science: Materials in Electronics
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.
