The present invention relates to organic electroluminescent devices, the emitting layer thereof containing a blend of a luminescent material having a narrow singlet-triplet gap and a fluorescent emission material having high steric shielding.
Organic light-emitting diode devices with improved operational stability
申请人:Eastman Kodak Company
公开号:US20040076853A1
公开(公告)日:2004-04-22
An organic light-emitting device includes a substrate, an anode and a cathode disposed over the substrate, and a luminescent layer disposed between the anode and the cathode wherein the luminescent layer includes a host and at least one dopant. The host of the luminescent layer is selected to include a solid organic material comprising a mixture of at least two components, one of which is capable of forming both monomer state and an aggregate state.
Organic materials comprising pendant redox-active metallocence groups are described. The hole transport property of these systems can be modulated through the metallocence moiety.