Abstract
It has been still a challenge to obtain a new single-component white-light phosphor with the vanadates as host lattices and with two types of ions as activators. A systematic Ln13+/Ln23+ (Ln13+/Ln23+ = Dy3+/Tm3+ or Dy3+/Sm3+ or Dy3+/Eu3+ or Tm3+/Eu3+ or Tm3+/Sm3+) coactivated Ca9Y(VO4)7 (CYV)samples as well as their singly doped CYV phosphors have been synthesized by the traditional solid state reaction and their photoluminescence properties have been investigated. The photoluminescence properties as a function of the concentration of rare earth ions have been discussed and the tunable luminescent color was found. The warm (CYV: 1%Dy3+, 1%Sm3+), natural (CYV: 7% Tm3+,0.5% Eu3+; CYV: 1.0% Tm3+, 0.5% Sm3+), and cold (CYV: 3% Tm3+,0.5% Eu3+; CYV: 0.5% Dy3+,0.5% Tm3+; CYV: 0.5% Dy3+,0.7% Tm3+; CYV: 0.3%Dy3+, 0.5% Tm3+) white lights can be obtained. Generally, the emission intensity or lifetime of one rare earth ions decreases with increasing of the concentration of another rare earth ions.
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.
