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

Abstract

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").

Inventors:

Omary, Mohammad A

Issue Date:

2013-11-12

Research Org.:

University of North Texas (Denton, TX)

Sponsoring Org.:

USDOE

OSTI Identifier:

1108006

Patent Number(s):

8580397

Application Number:

13/055,974

Assignee:

University of North Texas (Denton, TX)

Patent Classifications (CPCs):

C - CHEMISTRY C07 - ORGANIC CHEMISTRY C07D - HETEROCYCLIC COMPOUNDS

C - CHEMISTRY C09 - DYES C09K - MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE

Show more

C - CHEMISTRY C07 - ORGANIC CHEMISTRY C07D - HETEROCYCLIC COMPOUNDS

C07D401/04 - directly linked by a ring-member-to-ring-member bond
C07D401/14 - containing three or more hetero rings

C - CHEMISTRY C09 - DYES C09K - MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE

C09K11/06 - containing organic luminescent materials
C09K2211/1029 - containing one nitrogen atom as the heteroatom
C09K2211/1059 - containing three nitrogen atoms as heteroatoms
C09K2211/185 - of the platinum group, i.e. Os, Ir, Pt, Ru, Rh or Pd

H - ELECTRICITY H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR H05B - ELECTRIC HEATING

H05B33/14 - characterised by the chemical or physical composition or the arrangement of the electroluminescent material {, or by the simultaneous addition of the electroluminescent material in or onto the light source}

Show less

DOE Contract Number:  

FC26-06NT42859

Resource Type:

Patent

Country of Publication:

United States

Language:

English

Subject:

36 MATERIALS SCIENCE