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Title: Organic light-emitting diodes from homoleptic square planar complexes

Patent ·
OSTI ID:1108006

Homoleptic square planar complexes [M(N.LAMBDA.N).sub.2], wherein two identical N.LAMBDA.N bidentate anionic ligands are coordinated to the M(II) metal center, including bidentate square planar complexes of triazolates, possess optical and electrical properties that make them useful for a wide variety of optical and electrical devices and applications. In particular, the complexes are useful for obtaining white or monochromatic organic light-emitting diodes ("OLEDs"). Improved white organic light emitting diode ("WOLED") designs have improved efficacy and/or color stability at high brightness in single- or two-emitter white or monochrome OLEDs that utilize homoleptic square planar complexes, including bis[3,5-bis(2-pyridyl)-1,2,4-triazolato]platinum(II) ("Pt(ptp).sub.2").

Research Organization:
University of North Texas (Denton, TX)
Sponsoring Organization:
USDOE
DOE Contract Number:
FC26-06NT42859
Assignee:
University of North Texas (Denton, TX)
Patent Number(s):
8,580,397
Application Number:
13/055,974
OSTI ID:
1108006
Country of Publication:
United States
Language:
English

References (14)

Management of singlet and triplet excitons for efficient white organic light-emitting devices journal April 2006
Transition Metal Complex and Light-Emitting Device patent-application September 2002
Efficient Organic Electrophosphorescent White-Light-Emitting Device with a Triple Doped Emissive Layer journal April 2004
Pt complexes as phosphorescent emitters in the fabrication of organic light emitting diodes patent February 2006
Excimer-Based White Phosphorescent Organic Light-Emitting Diodes with Nearly 100 % Internal Quantum Efficiency journal January 2007
Efficient Blue- and White-Emitting Electrophosphorescent Devices Based on Platinum(II) [1,3-Difluoro-4,6-di(2-pyridinyl)benzene] Chloride journal June 2008
Highly efficient pure blue electroluminescence from 1,4-bis[2-(3-N-ethylcarbazoryl)vinyl]benzene journal December 2003
Platinum Binuclear Complexes as Phosphorescent Dopants for Monochromatic and White Organic Light-Emitting Diodes journal December 2006
Stacked white organic light emitting devices consisting of separate red, green, and blue elements journal November 2008
Introduction to Organic Thin Film Transistors and Design of n-Channel Organic Semiconductors journal August 2004
Stacked white organic light-emitting devices based on a combination of fluorescent and phosphorescent emitters journal July 2006
Highly efficient excimer-based white phosphorescent devices with improved power efficiency and color rendering index journal November 2008
Synthesis and Characterization of Phosphorescent Cyclometalated Platinum Complexes journal June 2002
White organic LEDs and their recent advancements journal April 2006

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