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.pi.-conjugated heavy-metal polymers for organic white-light-emitting diodes

Patent ·
OSTI ID:1324461

A polymer mixture emits a broad spectrum of visible light that appears white or near-white in the aggregate. The polymer mixture comprises two (or more) components in the active layer. A heavy atom, such as platinum and/or iridium, present in the backbone of the mixture acts via a spin-orbit coupling mechanism to cause the ratio of fluorescent to phosphorescent light emission bands to be of approximately equal strength. These two broad emissions overlap, resulting in an emission spectrum that appears to the eye to be white.

Research Organization:
The University of Utah Research Foundation, Salt Lake City, UT (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
FG02-04ER46109
Assignee:
The University of Utah Research Foundation (Salt Lake City, UT)
Patent Number(s):
9,444,065
Application Number:
12/300,416
OSTI ID:
1324461
Country of Publication:
United States
Language:
English

References (4)

Development of Pd–Cu catalyzed cross-coupling of terminal acetylenes with sp2-carbon halides journal July 2002
The triplet state in Pt-acetylide oligomers, polymers and copolymers journal July 2005
Recent Advances in Luminescent Transition Metal Polyyne Polymers journal June 2005
Synthesis of monomeric and oligomeric bis(acetylide) complexes of platinum and rhodium journal January 1991

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