Abstract
In this paper, Pr3+-doped YVO4 red phosphors were prepared by solid state methods. XRD results showed that the prepared YVO4: xPr3+ samples kept the crystal phase structure of the host YVO4, but the cell volume was slightly distorted during the high temperature treatment. Under ultraviolet light excitation, YVO4: Pr3+ phosphors exhibited red emission and the peaks located at 595 nm, 605 nm and 618 nm are ascribed to 3P1→3H6, 1D2→3H4 and 3P0→3H6 transitions of Pr3+ ion, respectively. The fluorescence temperature sensing characteristics of materials were studied using two kinds of fluorescence intensity ratio techniques, those are, based on thermal-coupled (3P1 and 3P0) and non-thermal-coupled energy levels (1D2 and 3P0). The results show that the maximum temperature sensitivity based on the non-thermal coupling energy level is Sr = 1.137%K−1 at 313 K, which is higher than the maximum temperature sensitivity based on the thermally coupled energy level（Sr = 0.783%K−1 at 303 K）.
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.
