01009nam a22002057a 4500952013300000999001700133040003600150082001700186100002500203245008500228260003500313300003800348500013600386500004000522500004200562502005900604546001200663650012100675942000700796 00104071aRIUbRIUd2021-06-22eRiphah International universityl0o530.411 BASp68153r2021-06-22 00:00:00t1w2021-06-22yTH c35612d35612 cRiphah International University a530.411bBAS aBasit Sohail (26199) aEnhancement in the up conversion luminescence of Er3+/Yb3+/Fe3+ -Tridoped NaBiF4 aIslamabadb(unpublished)c2020 axiv, 48 p.b: ill.c; 30 cm.e+CD aSubmitted in fulfillment of the requirements for the degree of Master of Philosophy in Physics to the Department of Basic Sciences. aIncludes bibliographical references aThesis supervisor: Dr. Sikander Azam  aThesis (M.Phil)--Riphah International University, 2020 aEnglish aPhysicsvDensity function theoryvMagnetic propertiesvGaussian functionvDielectric functionvPerovskitevDBSvFEAS cTH