| 초록 |
The new Electron-Transporting Material was designed and synthesized as a new electron-transporting material for organic light emitting devices (OLEDs). The obtained material forms homogeneous and stable amorphous film. The new synthesized showed the reversible cathodic reduction for hole blocking material and the low reduction potential for electron transporting material in organic EL devices. The bulky, sterically hindered tetrahedron molecular skeleton hindered close packing and crystallization as well as increased its molecular rigidity, leading to amorphous material having pronounced morphological stability. It is characterized by high oxidation potentials, low lying HOMO and LUMO level. The molecule possess excellent thermal stability with glass transition temperature . |
