| abstract |
Provide the Cyclometalated transition metal complex being represented by formula 3: whereinn m, X, CY1, CY2, CY5 and n with in detailed description book of the present invention, describe identical.By comprising new assistant ligand, use phosphorescent substance by exciton to triplet state and the intersystem crossing (ISC) of metal pair part electric charge transfer (MLCT) then, described Cyclometalated transition metal complex red-emitting effectively.The organic luminescent device that uses this transistion metal compound to prepare demonstrates high-luminous-efficiency and high external quantum efficiency. |