Ayvacıklı, M.Kaynar, Ümit H.Karabulut, Y.Guinea, J. GarciaDoğan, T.Can, N.2022-02-152022-02-1520200925-34671873-1252https://doi.org/10.1016/j.optmat.2020.110531https://hdl.handle.net/20.500.14034/123In this study, we report a detailed analysis of the photoluminescence (PL) and cathodoluminescence (CL) properties of La2CaB10O19 (LCB) doped with Dy ion. Dy doped LCB materials were successfully synthesized using a sol-gel combustion method. Dy doped LCB has the monoclinic structure with lattice parameters a = 11.02067 angstrom, b = 6.55755 angstrom, c = 9.10541 angstrom and alpha = gamma = 90.00, and 13 = 91.49?. Under the excitation by a low voltage electron beam and pulse laser at 349 nm, the LCB:Dy3+ phosphor produces the characteristic emission bands of Dy3+ due to intra-configuration transitions of F-4(9/2) -> H-6(15/2) (480 nm, blue), F-4(9/2) -> H-6(13/2) (574 nm, yellow), F-4(9/2) -> H-6(11/2) (662 nm, red) and F-4(9/2) -> H-6(9/2) (752 nm, red). The concentration quenching phenomenon was observed in both CL and PL measurements and optimum doping concentration was estimated to be 2%. We suggest that the concentration quenching mechanism of intense yellow emission at 574 nm was attributed to dipole-dipole interaction for both CL and PL.eninfo:eu-repo/semantics/closedAccessLa2CaB10O19CathodoluminescencePhotoluminescenceConcentration quenchingDipole-dipole interactionSpectroscopic PropertiesLuminescenceGrowthLanthanumEmissionEuArticle10.1016/j.optmat.2020.110531110Q2WOS:0006023885000052-s2.0-85092427615Q1