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Intermediate connector for stacked organic light emitting devices

Patent ·
OSTI ID:1083199

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

References (18)

High Efficiency Stacked Organic Light-Emitting Diodes Employing Li 2 O as a Connecting Layer journal December 2006
70.2: Low-Voltage White Tandem Structures for Fabricating RGBW AMOLED Displays journal January 2006
Highly efficient white organic electroluminescent devices based on tandem architecture journal December 2005
Tandem Organic Light-Emitting Diode using Hexaazatriphenylene Hexacarbonitrile in the Intermediate Connector journal January 2008
23.3: Distinguished Paper: High-Efficiency Tandem Blue OLEDs journal January 2006
High-efficiency white organic-light-emitting diodes combining fluorescent and phosphorescent emitter systems conference April 2006
White phosphorescent organic light emitting devices for display applications conference May 2006
High-efficiency stacked white organic light-emitting diodes journal January 2008
Effective intermediate layers for highly efficient stacked organic light-emitting devices journal August 2005
An effective intermediate Al/Au electrode for stacked color-tunable organic light emitting devices journal March 2008
Highly power efficient organic light-emitting devices enabled by phosphorescent and p-i-n technologies conference December 2006
Highly efficient white OLEDs for lighting applications conference October 2005
Bright and efficient white stacked organic light-emitting diodes journal August 2007
The mechanism and effective connecting architecture for tandem organic light-emitting devices conference October 2005
Organic White Light Emitting Devices with an rgb Stacked Multilayer Structure journal January 2003
Highly Efficient Organic Devices Based on Electrically Doped Transport Layers journal April 2007
Highly efficient p-i-n white organic light emitting devices with tandem structure journal December 2007
54.2: Tandem White OLEDs Combining Fluorescent and Phosphorescent Emission journal January 2008

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