Organic light-emitting device with a phosphor-sensitized fluorescent emission layer

Forrest, Stephen; Kanno, Hiroshi

Title: Organic light-emitting device with a phosphor-sensitized fluorescent emission layer

Abstract

The present invention relates to organic light emitting devices (OLEDs), and more specifically to OLEDS that emit light using a combination of fluorescent emitters and phosphorescent emitters. The emissive region of the devices of the present invention comprise at least one phosphor-sensitized layer which has a combined emission from a phosphorescent emitter and a fluorescent emitter. In preferred embodiments, the invention relates to white-emitting OLEDS (WOLEDs).

Inventors:

Forrest, Stephen ^[1]; Kanno, Hiroshi ^[2]

Ann Arbor, MI
Osaka, JP

Issue Date:: 2009-08-25

Research Org.:: Princeton Univ., NJ (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1013628

Patent Number(s):: 7579773

Application Number:: 11/447,473

Assignee:: The Trustees of Princeton University (Princeton, NJ)

Patent Classifications (CPCs):: H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01L - SEMICONDUCTOR DEVICES

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H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01L - SEMICONDUCTOR DEVICES
H01L51/5036 - {Multi-colour light emission, e.g. colour tuning, polymer blend, stack of electroluminescent layers}
H01L51/5044 - {with spacer layers between the emissive layers}
H01L51/0085 - {comprising Iridium}
H01L51/0071 - {Polycyclic condensed heteroaromatic hydrocarbons}
H01L51/0065 - {comprising only oxygen as heteroatom}
H01L2251/5376 - Combination of fluorescent and phosphorescent emission
H01L51/5016 - {Triplet emission}
H01L51/0059 - {Amine compounds having at least two aryl rest on at least one amine-nitrogen atom, e.g. triphenylamine
H01L51/0081 - {comprising aluminium, e.g. Alq3}

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DOE Contract Number:: FC26-04NT42272

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: 47 OTHER INSTRUMENTATION

Citation Formats


                    Forrest, Stephen, and Kanno, Hiroshi. Organic light-emitting device with a phosphor-sensitized fluorescent emission layer.  United States: N. p., 2009. 
        Web.

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                    Forrest, Stephen, & Kanno, Hiroshi. Organic light-emitting device with a phosphor-sensitized fluorescent emission layer.  United States.

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                    Forrest, Stephen, and Kanno, Hiroshi. Tue .  
        "Organic light-emitting device with a phosphor-sensitized fluorescent emission layer".  United States.  https://www.osti.gov/servlets/purl/1013628.

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@article{osti_1013628,

  title        = {Organic light-emitting device with a phosphor-sensitized fluorescent emission layer},

  author       = {Forrest, Stephen and Kanno, Hiroshi},

  abstractNote = {The present invention relates to organic light emitting devices (OLEDs), and more specifically to OLEDS that emit light using a combination of fluorescent emitters and phosphorescent emitters. The emissive region of the devices of the present invention comprise at least one phosphor-sensitized layer which has a combined emission from a phosphorescent emitter and a fluorescent emitter. In preferred embodiments, the invention relates to white-emitting OLEDS (WOLEDs).},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2009},

  month        = {8}

}

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Similar Records

Title: Organic light-emitting device with a phosphor-sensitized fluorescent emission layer

Abstract

Citation Formats

Bright white small molecular organic light-emitting devices based on a red-emitting guest–host layer and blue-emitting 4,4′-bis(2,2′-diphenylvinyl)-1,1′-biphenyl journal, August 2002

Single‐layer white light‐emitting organic electroluminescent devices based on dye‐dispersed poly( N ‐vinylcarbazole) journal, October 1995

Nearly 100% internal phosphorescence efficiency in an organic light-emitting device journal, November 2001

Excitonic singlet-triplet ratio in a semiconducting organic thin film journal, November 1999

Improved efficiency for white organic light-emitting devices based on phosphor sensitized fluorescence journal, February 2006

Efficient electroluminescence of distyrylarylene with hole transporting ability journal, November 1995

Highly efficient phosphorescent emission from organic electroluminescent devices journal, September 1998

Very high-efficiency green organic light-emitting devices based on electrophosphorescence journal, July 1999

Use of Poly(9-vinylcarbazole) as Host Material for Iridium Complexes in High-Efficiency Organic Light-Emitting Devices journal, August 2000

Recent progress of molecular organic electroluminescent materials and devices journal, December 2002

Bimolecular reactions of singlet excitons in tris (8‐hydroxyquinoline) aluminum journal, December 1996

High Quantum Efficiency in Organic Light-Emitting Devices with Iridium-Complex as a Triplet Emissive Center journal, December 1999

Surface oxidation activates indium tin oxide for hole injection journal, January 2000

Efficient, Saturated Red Organic Light Emitting Devices Based on Phosphorescent Platinum(II) Porphyrins journal, December 1999

High-efficiency fluorescent organic light-emitting devices using a phosphorescent sensitizer journal, February 2000

White-light-emitting organic electroluminescent devices based on interlayer sequential energy transfer journal, August 1999

A Vapochromic LED journal, January 1998

Management of singlet and triplet excitons for efficient white organic light-emitting devices journal, April 2006

Energy level line-up in polymer light-emitting diodes via electroabsorption spectroscopy journal, February 2001

Polymer phosphorescent light-emitting devices doped with tris(2-phenylpyridine) iridium as a triplet emitter journal, October 2000

White organic light-emitting devices based on 4,4′-bis(2,2′-diphenyl vinyl)-1,1′-biphenyl and phosphorescence sensitized 5,6,11,12-tetraphenylnaphthacene journal, January 2005

Transient analysis of organic electrophosphorescence: I. Transient analysis of triplet energy transfer journal, October 2000

High-efficiency red electrophosphorescence devices journal, March 2001

High-efficiency organic electrophosphorescent devices with tris(2-phenylpyridine)iridium doped into electron-transporting materials journal, August 2000

Electroluminescence of doped organic thin films journal, May 1989

Recent developments in molecular organic electroluminescent materials journal, January 1998

Improved energy transfer in electrophosphorescent devices journal, January 1999

White light from InGaN/conjugated polymer hybrid light-emitting diodes journal, May 1997

White organic light-emitting devices journal, November 2004

Bright white small molecular organic light-emitting devices based on a red-emitting guest–host layer and blue-emitting 4,4′-bis(2,2′-diphenylvinyl)-1,1′-biphenyl
journal, August 2002

Single‐layer white light‐emitting organic electroluminescent devices based on dye‐dispersed poly( N ‐vinylcarbazole)
journal, October 1995

Nearly 100% internal phosphorescence efficiency in an organic light-emitting device
journal, November 2001

Excitonic singlet-triplet ratio in a semiconducting organic thin film
journal, November 1999

Improved efficiency for white organic light-emitting devices based on phosphor sensitized fluorescence
journal, February 2006

Efficient electroluminescence of distyrylarylene with hole transporting ability
journal, November 1995

Highly efficient phosphorescent emission from organic electroluminescent devices
journal, September 1998

Very high-efficiency green organic light-emitting devices based on electrophosphorescence
journal, July 1999

Use of Poly(9-vinylcarbazole) as Host Material for Iridium Complexes in High-Efficiency Organic Light-Emitting Devices
journal, August 2000

Recent progress of molecular organic electroluminescent materials and devices
journal, December 2002

Bimolecular reactions of singlet excitons in tris (8‐hydroxyquinoline) aluminum
journal, December 1996

High Quantum Efficiency in Organic Light-Emitting Devices with Iridium-Complex as a Triplet Emissive Center
journal, December 1999

Surface oxidation activates indium tin oxide for hole injection
journal, January 2000

Efficient, Saturated Red Organic Light Emitting Devices Based on Phosphorescent Platinum(II) Porphyrins
journal, December 1999

High-efficiency fluorescent organic light-emitting devices using a phosphorescent sensitizer
journal, February 2000

White-light-emitting organic electroluminescent devices based on interlayer sequential energy transfer
journal, August 1999

A Vapochromic LED
journal, January 1998

Management of singlet and triplet excitons for efficient white organic light-emitting devices
journal, April 2006

Energy level line-up in polymer light-emitting diodes via electroabsorption spectroscopy
journal, February 2001

Polymer phosphorescent light-emitting devices doped with tris(2-phenylpyridine) iridium as a triplet emitter
journal, October 2000

White organic light-emitting devices based on 4,4′-bis(2,2′-diphenyl vinyl)-1,1′-biphenyl and phosphorescence sensitized 5,6,11,12-tetraphenylnaphthacene
journal, January 2005

Transient analysis of organic electrophosphorescence: I. Transient analysis of triplet energy transfer
journal, October 2000

High-efficiency red electrophosphorescence devices
journal, March 2001

High-efficiency organic electrophosphorescent devices with tris(2-phenylpyridine)iridium doped into electron-transporting materials
journal, August 2000

Electroluminescence of doped organic thin films
journal, May 1989

Recent developments in molecular organic electroluminescent materials
journal, January 1998

Improved energy transfer in electrophosphorescent devices
journal, January 1999

White light from InGaN/conjugated polymer hybrid light-emitting diodes
journal, May 1997

White organic light-emitting devices
journal, November 2004