Patent · US Active

Hybrid polymer light-emitting devices

US7745520B2 · kind B2 · utility

7Cited by

7References

5Claims

0Family size

Assignee

The Regents of the University of California · US

Inventors

Yan Shao · Andover, US
Guillermo C. Bazan · Lompoc, US
Alan J. Heeger · Lompoc, US

Key dates

Filing date	Jan 18, 2007
Grant date	Jun 29, 2010
Priority date	—
Expiry date	Aug 22, 2028

Classification

Technology area (CPC H)Electricity
CPC primaryH10K85/114
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Mixtures and light-emitting devices that incorporate such mixtures are disclosed in which a soluble phenyl-substituted poly(para-phenylene vinylene) (PPV) copolymer (“superyellow”) is used as the host light-emitting polymer and methyltrioctylammonium trifluoromethanesulfonate, an ionic liquid, is used to introduce a dilute concentration of mobile ions into the emitting polymer layer. These mixtures and devices incorporating them are able to combine some of the characteristics of polymer light emitting diodes (PLEDs) and polymer light-emitting electrochemical cells (PLECs).

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.