Author/Authors :
Ma، نويسنده , , Dongge and Wang، نويسنده , , Daike and Li، نويسنده , , Bin and Hong، نويسنده , , Zhiyong and Lu، نويسنده , , Su and Wang، نويسنده , , Lixiang and Zhao، نويسنده , , Xiaojiang and Minami، نويسنده , , Nobutsugu and Takada، نويسنده , , Noriyuki and Ichino، نويسنده , , Yoshiro and Yase، نويسنده , , Kiyoshi and Zhang، نويسنده , , Hongjie and Jing، نويسنده , , Xiabin and Wang، نويسنده , , Fosong، نويسنده ,
Abstract :
A novel thermally stable terbium carboxylate complex, Tb(MTP),(phen) (MTP=monotetradecyl phthalate, phen=1,10-phehanthroline). was synthesized and characterized. The device structure of glass substrate/indium-tin-oxide/poly(p-phenylenevinylene) (PPV)/poly (N-vinycarbazole) (PVK):Tb(MTP),(phen): 1,3,4-oxadizole derivative (PBD)/tris(8-hydroxyquinoline) (AIq3)/aluminum (Al) was employed to study the electroluminescent properties of Tb(MTP),(phen). A green emission with extremely sharp spectral band of less than 10 nm at 544 nm peak wavelength was observed. A maximum luminance of 152 cd/m2 and an external quantum efficiency of 0.017% were achieved at a drive voltage of 24 V. A possible mechanism of energy transfer based on the polymer doped with lanthanide organic complex was also proposed.
