Polythiophenes and devices thereof
The present invention is generally directed to organic microelectronic devices, and more specifically, in embodiments to the use of a class of polythiophenes as active materials in thin film transistors. The polythiophenes selected can be comprised of repeating thienylene units in which only certain...
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Main Authors | , , , |
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Format | Patent |
Language | English |
Published |
17.08.2004
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Online Access | Get full text |
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Summary: | The present invention is generally directed to organic microelectronic devices, and more specifically, in embodiments to the use of a class of polythiophenes as active materials in thin film transistors. The polythiophenes selected can be comprised of repeating thienylene units in which only certain thienylenes possess side chains, and which thienylene units are arranged in a regioregular manner on the polythiophene backbone.
Polythiophenes of the formula wherein R and R′ are side chains; A is a divalent linkage; x and y represent the number of unsubstituted thienylene units; z is 0 or 1, and wherein the sum of x and y is greater than zero; m represents the number of segments; and n represents the degree of polymerization. |
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