7-days of FREE Audio papers, translation & more with Prime
7-days of FREE Prime access
7-days of FREE Audio papers, translation & more with Prime
7-days of FREE Prime access
https://doi.org/10.1016/j.ceramint.2019.08.076
Copy DOIJournal: Ceramics International | Publication Date: Aug 8, 2019 |
Citations: 16 |
A Ba2SiO4:Eu2+ green emitting ceramic phosphor was fabricated by spark plasma sintering (SPS). The phosphor exhibited good luminescence characteristics but possessed poor mechanical strength, which was probably caused by anisotropic thermal expansion due to the orthorhombic crystal structure of Ba2SiO4. To solve this problem, Ba2SiO4:Eu2+-silica composite and Ba2SiO4:Eu2+-spinel composite ceramic phosphors were fabricated. However, a large amount of impurity phases were generated in the composite phase ceramics. Then, a spinel/Ba2SiO4:Eu2+/spinel sandwich structure translucent ceramic phosphor was fabricated by SPS, which showed robust mechanical strength, acceptable transparency and high thermal conductivity. There was no severe chemical reaction at the interface between the spinel layer and the Ba2SiO4:Eu2+ layer. The ceramic phosphor has a broad emission band with a peak at 506 nm and can be excited by UV or blue LED/LD chips. The translucent spinel/Ba2SiO4:Eu2+/spinel ceramic was evaluated and has the potential to be a phosphor converting material for wLEDs and projectors.
Join us for a 30 min session where you can share your feedback and ask us any queries you have
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.