Polythiophenes and electronic devices comprising the same
AssigneeXerox Corporation
InventorsPing Liu, Yiliang Wu, Yuning Li
Life of this patent
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Abstract
Disclosed are semiconducting polythiophenes comprising a repeating unit of Formula (A) or a copolythiophene of Formula (B): wherein A and B are each alkyl having from 1 to about 25 carbon atoms; and a, b, c, d, e, f, g, x, and y are as defined herein. These polythiophenes have high mobility and are soluble in common organic solvents, so that chlorinated solvents do not need to be used. They are useful for depositing semiconducting layers, particularly in organic thin-film transistors.
Claims22
A polythiophene comprising a repeating unit of Formula (A):
- wherein A and B are independently alkyl having from 1 to about 25 carbon atoms.
A copolythiophene of Formula (B):
- wherein A and B are each alkyl having from 1 to about 25 carbon atoms;
- A is longer than B;
- a, b, c, d, e, f, and g are each from 1 to about 7;
- y is greater than 0;
- and x and y together equal 100 mole percent.
An electronic device having a semiconducting layer, wherein the semiconducting layer comprises a polythiophene, the polythiophene comprising a repeating unit of Formula (A):
- wherein A and B are independently alkyl having from 1 to about 25 carbon atoms.
An electronic device having a semiconducting layer, wherein the semiconducting layer comprises a copolythiophene of Formula (B):
- wherein A and B are each alkyl having from 1 to about 25 carbon atoms;
- A is longer than B;
- a, b, c, d, e, f, and g are each from 1 to about 7;
- y is greater than 0;
- and x and y together equal 100 mole percent.
A deposition solution comprising;
- a non-chlorinated solvent;
- and
- a polythiophene comprising a repeating unit of Formula (A):
- wherein A and B are each alkyl having from 1 to about 25 carbon atoms;
- and A is longer than B.
A deposition solution comprising;
- a non-chlorinated solvent;
- and
- a copolythiophene of Formula (B):
- wherein A and B are each alkyl having from 1 to about 25 carbon atoms;
- A is longer than B;
- a, b, c, d, e, f, and g are each from 1 to about 7;
- y is greater than 0;
- and x and y together equal 100 mole percent.
Dependencies are inferred from the claim text.