ORGN 178 |
| Hadjar Benmansour and Guillermo C. Bazan. Departments of Chemistry and Materials, University of California at Santa Barbara, Santa Barbara, CA 93106-5050 |
| We report here the synthesis and the device performance of new materials used as hosts and dopants for blue emitting luminescent devices. The akward molecular shape of these new materials endows them with resistance to crystallisation and good film forming abilities. In addition, they are soluble in organic solvents, have high emission quantum yields in solution, and display elevated glass temperatures; they are therefore suitable for use in LED applications as blue emitting hosts or as dopants in an emissive matrix. Multi-layered devices fabricated by vacuum evaporation displayed a low-turn-on voltage, high efficiencies and a high maximum luminance. When used as dopants, only blue electroluminescence from the dopant is observed. |
|
Functional pi-Electronic Systems
8:00 PM-10:00 PM, Sunday, March 23, 2003 Convention Center -- Hall G, Poster
Division of Organic Chemistry |