The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 07, 2008
Filed:
Sep. 24, 2003
Che-hsiung Hsu, Wilmington, DE (US);
Yong Cao, Goleta, CA (US);
Sunghan Kim, Goleta, CA (US);
Daniel David Lecloux, Buellton, CA (US);
Chi Zhang, Goleta, CA (US);
Che-Hsiung Hsu, Wilmington, DE (US);
Yong Cao, Goleta, CA (US);
Sunghan Kim, Goleta, CA (US);
Daniel David Lecloux, Buellton, CA (US);
Chi Zhang, Goleta, CA (US);
E. I. du Pont de Nemours and Company, Wilmington, DE (US);
Abstract
Compositions are provided comprising aqueous dispersions of polythiophenes and colloid-forming polymeric acids. Films from invention compositions are useful as buffer layers in organic electronic devices, including electroluminescent devices, such as, for example, organic light emitting diodes (OLED) displays in combination with metal nanowires or carbon nanotubes in applications such as drain, source, or gate electrodes in thin film field effect transistors.