DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Ultrabright fluorescent OLEDS using triplet sinks

Abstract

A first device is provided. The first device further comprises an organic light emitting device. The organic light emitting device further comprises an anode, a cathode, and an emissive layer disposed between the anode and the cathode. The emissive layer further comprises an organic host compound, an organic emitting compound capable of fluorescent emission at room temperature, and an organic dopant compound. The triplet energy of the dopant compound is lower than the triplet energy of the host compound. The dopant compound does not strongly absorb the fluorescent emission of the emitting compound.

Inventors:
; ;
Issue Date:
Research Org.:
The University of Southern California (Los Angeles, CA); Univ. of Michigan, Ann Arbor, MI (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1084353
Patent Number(s):
8456081
Application Number:
13/117,926
Assignee:
The University of Southern California (Los Angeles, CA); The Regents of the University of Michigan (Ann Arbor, MI)
Patent Classifications (CPCs):
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01L - SEMICONDUCTOR DEVICES
DOE Contract Number:  
SC0001013; EE0000626
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Zhang, Yifan, Forrest, Stephen R, and Thompson, Mark. Ultrabright fluorescent OLEDS using triplet sinks. United States: N. p., 2013. Web.
Zhang, Yifan, Forrest, Stephen R, & Thompson, Mark. Ultrabright fluorescent OLEDS using triplet sinks. United States.
Zhang, Yifan, Forrest, Stephen R, and Thompson, Mark. Tue . "Ultrabright fluorescent OLEDS using triplet sinks". United States. https://www.osti.gov/servlets/purl/1084353.
@article{osti_1084353,
title = {Ultrabright fluorescent OLEDS using triplet sinks},
author = {Zhang, Yifan and Forrest, Stephen R and Thompson, Mark},
abstractNote = {A first device is provided. The first device further comprises an organic light emitting device. The organic light emitting device further comprises an anode, a cathode, and an emissive layer disposed between the anode and the cathode. The emissive layer further comprises an organic host compound, an organic emitting compound capable of fluorescent emission at room temperature, and an organic dopant compound. The triplet energy of the dopant compound is lower than the triplet energy of the host compound. The dopant compound does not strongly absorb the fluorescent emission of the emitting compound.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2013},
month = {6}
}

Works referenced in this record:

Quasi-continuous-wave operation of an organic thin-film distributed feedback laser
journal, August 2006


Flashlamp-excited organic dye lasers
journal, January 1969


Transient and steady-state behavior of space charges in multilayer organic light-emitting diodes
journal, April 2001


Spectrally separated optical gain and triplet absorption: Towards continuous wave lasing in organic thin film lasers
journal, August 2011


External Heavy‐Atom Spin—Orbital Coupling Effect. V. Absorption Studies of Triplet States
journal, January 1964


The overshoot effect in transient electroluminescence from organic bilayer light emitting diodes: Experiment and theory
journal, June 1997


Optical properties of molecular organic semiconductor thin films under intense electrical excitation
journal, February 1999


Enhanced efficiency in high-brightness fluorescent organic light emitting diodes through triplet management
journal, November 2011


Triplet Excitation Scavenging in Films of Conjugated Polymers
journal, May 2009


Triplet annihilation exceeding spin statistical limit in highly efficient fluorescent organic light-emitting diodes
journal, December 2009


Location and assignment of the lowest triplet state of perylene
journal, November 1969


Transient behavior of organic thin film electroluminescence
journal, March 1992


Study of lasing action based on Förster energy transfer in optically pumped organic semiconductor thin films
journal, October 1998


Laser interference as a lithographic nanopatterning tool
journal, January 2006


Anthracene derivatives for stable blue-emitting organic electroluminescence devices
journal, April 2002


Organic Semiconductor Lasers
journal, April 2007


Transient electroluminescence measurements on organic heterolayer light emitting diodes
journal, June 2000


Improvement of output coupling efficiency of organic light-emitting diodes by backside substrate modification
journal, March 2000


Lasing from conjugated-polymer microcavities
journal, August 1996


Continuous-wave solid-state dye laser
journal, January 2006


Structures for organic diode lasers and optical properties of organic semiconductors under intense optical and electrical excitations
journal, January 2000


Transient electroluminescence of polymer light emitting diodes using electrical pulses
journal, November 1999


Singlet–triplet quenching in high intensity fluorescent organic light emitting diodes
journal, August 2010


Green fluorescent organic light-emitting device with external quantum efficiency of nearly 10%
journal, August 2006


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


Transient response of a bilayer organic electroluminescent diode: Experimental and theoretical study of electroluminescence onset
journal, February 2001


Singlet-Triplet Interactions in Crystalline Anthracene
journal, October 1968


Electron-Induced Quenching of Excitons in Luminescent Materials
journal, January 2007


Triplet states in organic semiconductors
journal, November 2009


The influence of annihilation processes on the threshold current density of organic laser diodes
journal, January 2007


The triplet state energies of rubrene and diphenylisobenzofuran
journal, January 1981


Current-induced fluorescence quenching in organic light-emitting diodes
journal, February 2002


Simulating electronic and optical processes in multilayer organic light-emitting devices
journal, May 2003


Prospects for electrically pumped organic lasers
journal, July 2002


Red organic light-emitting diodes using an emitting assist dopant
journal, September 1999


Full-wave simulation of enhanced outcoupling of organic light-emitting devices with an embedded low-index grid
journal, April 2009


Room temperature lifetime of triplet excitons in fluorescent host/guest systems
journal, March 2011


Time-resolved transient electroluminescence measurements of emission from DCM-doped Alq3 layers
journal, October 2004


High-external-quantum-efficiency organic light-emitting devices
journal, January 1997


Stacked white organic light emitting devices consisting of separate red, green, and blue elements
journal, November 2008


Laser action in organic semiconductor waveguide and double-heterostructure devices
journal, September 1997


Electroluminescence of doped organic thin films
journal, May 1989


Triplet exciton confinement and unconfinement by adjacent hole-transport layers
journal, June 2004