Title :
Fabrication and performances of a double-layer organic electroluminescent device using a novel starburst molecule, 1,3,5-tris[N-(4-diphenylaminophenyl)phenylamino]benzene, as a hole-transport material and tris(8-quinolinolato)aluminum as an emitting mater
Author :
Itano, Koji ; Tsuzuki, Toshimitsu ; Ogawa, Hiromitsu ; Appleyard, Susan ; Willis, Martin R. ; Shirota, Yasuhiko
Author_Institution :
Dept. of Appl. Chem., Osaka Univ., Japan
fDate :
8/1/1997 12:00:00 AM
Abstract :
A double-layer organic electroluminescent (EL) device was fabricated using a novel starburst molecule, 1,3,5-tris[N-(4-diphenylaminophenyl)phenylamino]benzene (p-DPA-TDAB), as a hole transport material and tris(8-quinolinolato) aluminum (Alq3 ) as an emitting material, and its performance characteristics were investigated. It was found that p-DPA-TDAB, which forms a stable amorphous glass with a glass-transition temperature of 108°C, functions as a good hole-transport material and that the EL device is thermally stable, operating at a temperature of 120°C
Keywords :
electroluminescent devices; flat panel displays; glass transition; organic compounds; organic semiconductors; thermal stability; vacuum deposition; 1,3,5-tris[N-(4-diphenylaminophenyl)phenylamino]benzene; 108 C; 120 C; current density; double-layer organic electroluminescent device; emitting material; full-color flat panel display; glass-transition temperature; hole-transport material; operating temperature; performance characteristics; stable amorphous glass; starburst molecule; thermally stable device; tris(8-quinolinolato)aluminum; vacuum deposition; Amorphous materials; Charge carriers; Chemistry; Crystalline materials; Crystallization; Electrodes; Electroluminescent devices; Fabrication; Organic materials; Temperature;
Journal_Title :
Electron Devices, IEEE Transactions on
