Abstract
Near Infra–red (NIR) emitting NaCaYF6:Nd3+and co–doped with Yb3+phosphor has been prepared by hydrothermal synthesis. The formation of Gagarinite structure of the host matrix with space group P63/m was confirmed by XRD and Rietveld analysis. FESEM analysis confirms the spherical morphology along with the homogeneity, and mapping of elemental composition by EDS analysis. NIR emission at 1065 nm due to 4F3/2→4I11/2 electronic transition of Nd3+ ion upon the exposure to 577 nm light. The prominent PL emission at 994 nm from NaCaYF6:Nd3+,Yb3+ phosphor was obtained due to 2F5/2→2F7/2 electronic transition of Yb3+ion. Yb3+ emission was sensitized by Nd3+ activator. The intensity of Yb3+emission increases at the cost of the Nd3+ luminescence. The results are ascribed to the energy transfer from Nd3+to Yb3+. The theoretical Judd-Ofelt (J-O) analysis was also reported to confirm the obtained luminescence behaviour and energy transfer (ET) mechanism of the phosphor. The obtained results specify that the phosphor has a potential application such as in–vivo, in−vitro imaging and NIR laser applications.
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.
