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A plastic transistor is made of an inherently conducting polymer (ICP) that provides the electronic switching ability inherent in a transistor. However, ICPās are breakable and inelastic. To counter this problem scientists chemically link ICPās with a grease-like elastic polymer, producing block copolymers. Although elasticity is enhanced in this way, the elastic polymers degrade the electrical performance of the transistor.
When the Carnegie Mellon scientists pretreated the transistorās silicon dioxide platform with OTS-8 (a chemical that creates a grease-like coating) they found that transistors incorporating any of the four block copolymers conducted an electric charge with remarkable ease, even when the insulating polymer constituted more than half of the applied block copolymer.
The head of the research group, Prof. Richard McCullough, reported to the Carnegie Mellon Press: āWe were surprised and amazed with our findingā¦ this is the first report that copolymers are good organic semiconductors ā¦ these results mean that we could soon design devices that are both flexible and highly functionalā.
Future devices that may rely on this discovery are e-books that could be rolled like a newspaper. Such flexible display technology was recently reported by TFOT.
More information about the new technology can be found in the report of the Carnegie Mellon Press.
