Abstract
A novel reddish orange light emitting phosphor, CaSnO3:Sm3+, is prepared via a two-step approach including the room temperature synthesis of CaSn(OH)6 precursor and then convert it into CaSnO3 by calcination and its optical properties are systematically investigated. X-ray diffraction, photoluminescence, long persistent phosphorescence and thermoluminescence spectra are used to characterize the synthesized phosphor. This phosphor is found to be well-crystallized by calcination at 750°C for 3h. Photoluminescence measurement indicates that Sm3+-doped CaSnO3 shows an overall reddish orange emission with a CIE values of x=0.57, y=0.37. After irradiation under the 254-nm UV light, the 4G5/2 to 6HJ (J=5/2,7/2,9/2,11/2) afterglow emissions of Sm3+ are obviously observed. Furthermore, the thermoluminescence and the possible mechanism for the long persistent phosphorescence (LPP) of the CaSnO3:Sm3+ phosphor is also discussed in this paper.
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.
