Intermediate connector for stacked organic light emitting devices
A device is provided, having an anode, a cathode, and an intermediate connector disposed between the anode and the cathode. A first organic layer including an emissive sublayer is disposed between the anode and the intermediate connector, and a second including an emissive sublayer is disposed between the intermediate connector and the cathode. The intermediate connector includes a first metal having a work function lower than 4.0 eV and a second metal having a work function lower than 5.0 eV. The work function of the first metal is at least 0.5 eV less than the work function of the second metal. The first metal is in contact with a sublayer of the second organic layer that includes a material well adapted to receive holes from a low work function metal.
- Research Organization:
- Universal Display Corporation (Ewing, NJ)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- FG02-06ER84582; FG02-05ER84263
- Assignee:
- Universal Display Corporation (Ewing, NJ)
- Patent Number(s):
- 8,372,526
- Application Number:
- 12/174,286
- OSTI ID:
- 1083199
- Country of Publication:
- United States
- Language:
- English
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