Patent · US Active

Annellated dithiophene copolymers

US8729220B2 · kind B2 · utility

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18Claims

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Assignee

BASF SE

Inventors

Mathias Dueggeli · Basel, CH
Ralph E. Reiger · Darmstadt, DE
Klaus Muellen · Cologne, DE
Natalia Chebotareva · Rixheim, FR
Dirk Beckmann · Harxheim, DE

Key dates

Filing date	Mar 29, 2011
Grant date	May 20, 2014
Priority date	—
Expiry date	Jul 27, 2032

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E10/549
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

An organic semiconductor material, layer or component, comprising a copolymer of the formulawherein v and w each generally are from the range 4 to 1000; A is a benzodithiophene repeating unit of the formula II or IIIand COM is selected from certain arylene-type repeating units, and combinations thereof. The present copolymers, as well as composites thereof, may be used as semiconductor in the preparation of electronic devices such as photodiodes, organic field effect transistors and especially organic photovoltaic devices such as solar cells.

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