Organic electrophosphorescence device having interfacial layers

Choulis, Stelios A; Mathai, Mathew; Choong, Vi-En; So, Franky

Title: Organic electrophosphorescence device having interfacial layers

Patent · Tue Aug 10 00:00:00 EDT 2010

OSTI ID:1013829

Choulis, Stelios A ^[1]; Mathai, Mathew ^[2]; Choong, Vi-En ^[1]; So, Franky ^[3]

San Jose, CA
Santa Clara, CA
Gainesville, FL

Techniques are described for forming an organic light emitting diode device with improved device efficiency. Materials having at least one energy level that is similar to those of a phosphorescent light emitting material in the diode are incorporated into the device to directly inject holes or electrons to the light emitting material.

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Research Organization:: Osram Opto Semiconductors GmbH (Regensburg, DE)

Sponsoring Organization:: USDOE

DOE Contract Number:: FC26-04NT41947

Assignee:: Osram Opto Semiconductors GmbH (Regensburg, DE)

Patent Number(s):: 7,772,761

Application Number:: 11/238,888

OSTI ID:: 1013829

Country of Publication:: United States

Language:: English

References (8)

Highly Efficient Single-Layer Polymer Electrophosphorescent Devices Yang, X.; Neher, D.; Hertel, D. Advanced Materials, Vol. 16, Issue 2 https://doi.org/10.1002/adma.200305621	journal	January 2004
High T/sub g/ hole transport polymers for the fabrication of bright and efficient organic light-emitting devices with an air-stable cathode Jabbour, G. E.; Shaheen, S. E.; Morrell, M. M. IEEE Journal of Quantum Electronics, Vol. 36, Issue 1 https://doi.org/10.1109/3.817633	journal	January 2000
Green Phosphorescent Dendrimer for Light-Emitting Diodes Lo, S. -C.; Male, N. A. H.; Markham, J. P. J. Advanced Materials, Vol. 14, Issue 13-14, p. 975-979 https://doi.org/10.1002/1521-4095(20020705)14:13/14<975::AID-ADMA975>3.0.CO;2-D	journal	July 2002
Highly efficient polymer light-emitting devices using ambipolar phosphorescent polymers Suzuki, Mitsunori; Tokito, Shizuo; Sato, Fumio Applied Physics Letters, Vol. 86, Issue 10 https://doi.org/10.1063/1.1879102	journal	March 2005
Highly efficient phosphorescent emission from organic electroluminescent devices Baldo, M. A.; O'Brien, D. F.; You, Y. Nature, Vol. 395, Issue 6698, p. 151-154 https://doi.org/10.1038/25954	journal	September 1998
The effect of interfacial layer on the performance of organic light-emitting diodes Choulis, Stelios A.; Choong, Vi-En; Mathai, Mathew K. Applied Physics Letters, Vol. 87, Issue 11 https://doi.org/10.1063/1.2042635	journal	September 2005
White Organic Light-Emitting Devices for Solid-State Lighting D'Andrade, B. W.; Forrest, S. R. Advanced Materials, Vol. 16, Issue 18, p. 1585-1595 https://doi.org/10.1002/adma.200400684	journal	September 2004
polymers shine the light Leadbeater, Mark SPIE Newsroom https://doi.org/10.1117/2.5200206.0003	journal	January 2002

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