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Title: Organic electronic devices with multiple solution-processed layers

Patent ·
OSTI ID:1260197

A method for fabricating an organic light emitting device stack involves depositing a first conductive electrode layer over a substrate; depositing a first set of one or more organic layers, wherein at least one of the first set of organic layers is a first emissive layer and one of the first set of organic layers is deposited by a solution-based process that utilizes a first solvent; depositing a first conductive interlayer by a dry deposition process; and depositing a second set of one or more organic layers, wherein at least one of the second set of organic layers is a second emissive layer and one of the second set of organic layers is deposited by a solution-based process that utilizes a second solvent, wherein all layers that precede the layer deposited using the second solvent are insoluble in the second solvent.

Research Organization:
Univ. of Michigan, Ann Arbor, MI (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
SC0000957; SC0001013
Assignee:
The Regents of the University of Michigan (Ann Arbor, MI)
Patent Number(s):
9,385,348
Application Number:
14/817,979
OSTI ID:
1260197
Resource Relation:
Patent File Date: 2015 Aug 04
Country of Publication:
United States
Language:
English

References (12)

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Electroluminescent devices for lighting applications patent October 2012
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OLEDs utilizing direct injection to the triplet state patent-application December 2006
Phosphorescent OLED with interlayer patent-application May 2007
Materials and architectures for efficient harvesting of singlet and triplet excitons for white light emitting OLEDs patent-application May 2008
Stable Blue Phosphorescent Organic Light Emitting Devices patent-application December 2009
Method And Apparatus For Depositing Material Using A Dynamic Pressure patent-application February 2011
Ultra-High Efficiency (125%) Phosphorescent Organic Light Emitting Diodes Using Singlet Fission patent-application September 2013