White light-emitting organic electroluminescent devices

Shiang, Joseph John; Duggal, Anil Raj; Parthasarathy, Gautam

Title: White light-emitting organic electroluminescent devices

Patent · Tue Jun 20 00:00:00 EDT 2006

OSTI ID:1175796

Shiang, Joseph John; Duggal, Anil Raj; Parthasarathy, Gautam

A light-emitting device comprises a light-emitting member, which comprises two electrodes, at least two organic electroluminescent ("EL") materials disposed between the electrodes, a charge blocking material disposed between the electrodes, and at least one photoluminescent ("PL") material. The light-emitting member emits electromagnetic ("EM") radiation having a first spectrum in response to a voltage applied across the two electrodes. The PL material absorbs a portion of the EM radiation emitted by the light-emitting member and emits EM radiation having second spectrum different than the first spectrum. Each of the organic EL materials emits EM radiation having a wavelength range selected from the group consisting of blue and red wavelength ranges.

View Patent

Cite

Export

Save

Research Organization:: GE Global Research, Niskayuna, New York (United States)

Sponsoring Organization:: USDOE

DOE Contract Number:: FC26-00NT40989

Assignee:: General Electric Company (Niskayuna, NY)

Patent Number(s):: 7,063,900

Application Number:: 10/328,263

OSTI ID:: 1175796

Country of Publication:: United States

Language:: English

References (16)

Europium complexes as emitters in organic electroluminescent devices Liu, Lin; Li, Wenlian; Hong, Ziruo Synthetic Metals, Vol. 91, Issue 1-3 https://doi.org/10.1016/S0379-6779(97)04029-0	journal	December 1997
Highly efficient polymer light-emitting devices using a phosphorescent sensitizer He, Gufeng; Chang, Shun-Chi; Chen, Fang-Chung Applied Physics Letters, Vol. 81, Issue 8 https://doi.org/10.1063/1.1502442	journal	August 2002
Oxadiazole-containing material with intense blue phosphorescence emission for organic light-emitting diodes Liang, Fushun; Wang, Lixiang; Ma, Dongge Applied Physics Letters, Vol. 81, Issue 1 https://doi.org/10.1063/1.1491288	journal	July 2002
High-efficiency yellow double-doped organic light-emitting devices based on phosphor-sensitized fluorescence D’Andrade, Brian W.; Baldo, Marc A.; Adachi, Chihaya Applied Physics Letters, Vol. 79, Issue 7 https://doi.org/10.1063/1.1388159	journal	August 2001
Red organic light emitting device made from triphenylene hexaester and perylene tetraester Seguy, I.; Jolinat, P.; Destruel, P. Journal of Applied Physics, Vol. 89, Issue 10 https://doi.org/10.1063/1.1365059	journal	May 2001
Electroluminescence mechanisms in organic light emitting devices employing a europium chelate doped in a wide energy gap bipolar conducting host Adachi, Chihaya; Baldo, Marc A.; Forrest, Stephen R. Journal of Applied Physics, Vol. 87, Issue 11 https://doi.org/10.1063/1.373496	journal	June 2000
High operational stability of electrophosphorescent devices Kwong, Raymond C.; Nugent, Matthew R.; Michalski, Lech Applied Physics Letters, Vol. 81, Issue 1 https://doi.org/10.1063/1.1489503	journal	July 2002
Synthesis and Properties of Europium Complexes with β -Diketone Ligands for Organic Electroluminescent Devices Uekawa, Masahiro; Miyamoto, Yasuo; Ikeda, Hitoshi Bulletin of the Chemical Society of Japan, Vol. 71, Issue 9 https://doi.org/10.1246/bcsj.71.2253	journal	September 1998
Narrow Bandwidth Luminescence from Blends with Energy Transfer from Semiconducting Conjugated Polymers to Europium Complexes McGehee, M. D.; Bergstedt, T.; Zhang, C. Advanced Materials, Vol. 11, Issue 16, p. 1349-1354 https://doi.org/10.1002/(SICI)1521-4095(199911)11:16<1349::AID-ADMA1349>3.0.CO;2-W	journal	November 1999
Effects of singlet and triplet energy transfer to molecular dopants in polymer light-emitting diodes and their usefulness in chromaticity tuning Higgins, R. W. T.; Monkman, A. P.; Nothofer, H. -G. Applied Physics Letters, Vol. 79, Issue 6 https://doi.org/10.1063/1.1389070	journal	August 2001
Tris(dibenzoylmethane)(monophenanthroline)europium(III) based red emitting organic light emitting diodes Heil, H.; Steiger, J.; Schmechel, R. Journal of Applied Physics, Vol. 90, Issue 10 https://doi.org/10.1063/1.1410319	journal	November 2001
White-Light-Emitting Organic Electroluminescent Device Using Lanthanide Complexes Kido, Junji; Ikeda, Wataru; Kimura, Masato Japanese Journal of Applied Physics, Vol. 35, Issue Part 2, No. 3B https://doi.org/10.1143/JJAP.35.L394	journal	March 1996
Energy transfer in polymer electrophosphorescent light emitting devices with single and multiple doped luminescent layers Kawamura, Yuichiro; Yanagida, Shozo; Forrest, Stephen R. Journal of Applied Physics, Vol. 92, Issue 1 https://doi.org/10.1063/1.1479751	journal	July 2002
Very high-efficiency green organic light-emitting devices based on electrophosphorescence Baldo, M. A.; Lamansky, S.; Burrows, P. E. Applied Physics Letters, Vol. 75, Issue 1, p. 4-6 https://doi.org/10.1063/1.124258	journal	July 1999
Infrared organic light emitting diodes using neodymium tris -(8-hydroxyquinoline) Khreis, O. M.; Curry, R. J.; Somerton, M. Journal of Applied Physics, Vol. 88, Issue 2 https://doi.org/10.1063/1.373803	journal	July 2000
Near-ultraviolet electroluminescence from polysilanes Suzuki, Hiroyuki; Hoshino, Satoshi; Yuan, Chien-Hua Thin Solid Films, Vol. 331, Issue 1-2 https://doi.org/10.1016/S0040-6090(98)00947-X	journal	October 1998

Similar Records

Light-emitting device with organic electroluminescent material and photoluminescent materials

Patent · Tue Jun 07 00:00:00 EDT 2005 · OSTI ID:1175796

McNulty, Thomas Francis; Duggal, Anil Raj; Turner, Larry Gene; +1 more

Mechanically flexible organic electroluminescent device with directional light emission

Patent · Tue May 10 00:00:00 EDT 2005 · OSTI ID:1175796

Duggal, Anil Raj; Shiang, Joseph John; Schaepkens, Marc

Concentration dependence of photoluminescence and electroluminescence in 2,5 bis[2{prime}-(4{double_prime}-hydroxyhexanol benyl)-1{prime}-ethyl]3,4-dibutyl thiophenes

Conference · Wed Jul 01 00:00:00 EDT 1998 · OSTI ID:1175796

Blumstengel, S; Sokolik, I; Dorsinville, R; +4 more

Related Subjects

47 OTHER INSTRUMENTATION

Title: White light-emitting organic electroluminescent devices

Citation Formats

References (16)

Similar Records

Related Subjects