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Title: Organic electronic devices with multiple solution-processed layers

Patent ·
OSTI ID:1207237

A method of fabricating a tandem organic photosensitive device involves depositing a first layer of an organic electron donor type material film by solution-processing of the organic electron donor type material dissolved in a first solvent; depositing a first layer of an organic electron acceptor type material over the first layer of the organic electron donor type material film by a dry deposition process; depositing a conductive layer over the interim stack by a dry deposition process; depositing a second layer of the organic electron donor type material over the conductive layer by solution-processing of the organic electron donor type material dissolved in a second solvent, wherein the organic electron acceptor type material and the conductive layer are insoluble in the second solvent; depositing a second layer of an organic electron acceptor type material over the second layer of the organic electron donor type material film by a dry deposition process, resulting in a stack.

Research Organization:
Univ. of Michigan, Ann Arbor, MI (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
SC0000957
Assignee:
The Regents of the University of Michigan (Ann Arbor, MI)
Patent Number(s):
9,099,652
Application Number:
14/473,995
OSTI ID:
1207237
Resource Relation:
Patent File Date: 2014 Aug 29
Country of Publication:
United States
Language:
English

References (11)

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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