Copolythiophene semiconductors for electronic device applications
AssigneeXerox Corporation
InventorsPing Liu, Yiliang Wu, Cameron Derry, Anthony James Wigglesworth, Nan-Xing Hu
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Abstract
A semiconducting copolythiophene composition that includes repeating units obtained from the copolymerization of compounds of Formula (2): and Formula (3): in which the copolythiophene has at least two repeating units (possessing side chains, such as alkyl side chains), which are arranged in manner such that the side chains on the polythiophene backbone are distributed non-uniformly, is described. Electronic devices incorporating such copolythiophene compositions are also described.
Claims20
A composition comprising:
- a random copolythiophene of formula (1):
- wherein R1 and R2 are the same or different and each is an alkyl, alkoxyalkyl, or perhaloalkyl;
- and x and y are each greater than 0 and together equal 100 mole percent.
An electronic device comprising a semiconducting layer, wherein the semiconducting layer comprises a random copolythiophene of formula (1):
- wherein
- R1 and R2 are the same or different and each is an alkyl having from about 1 to about 20 carbon atoms;
- and
- x and y are each greater than 0 and together equal 100 mole percent.
A method of making a random copolythiophene, the method comprising:
- copolymerizing a compound of the formula (2):
- wherein R1 is an alkyl having from about 6 to about 25 carbon atoms;
- with a compound of formula (3):
- wherein R2 is an alkyl having from about 1 to about 20 carbon atoms;
- to form a random copolythiophene of formula (1):
- wherein x and y are each greater than 0 and together equal 100 mole percent.
Dependencies are inferred from the claim text.