Bell Labs scientist invents spray-on polymer transistor

Bell Labs scientist invents spray-on polymer transistor
Steve Bush Spray-on polymer transistors are here, claims a US researcher. “We found it’s possible to make transistors by spraying dilute solutions of small molecules directly on a flat sheet,” said Bell Labs chemist Howard Katz. “The droplets evaporate and leave behind the film that becomes the most crucial layer of the transistor. So far, the results have been similar to those achieved with the printing process.” The spaghetti-like molecules used in polymer transistors are amenable to printing, but not ideal electrically. Better plastic semiconductors should be possible with shorter, more ordered, molecules, claims Katz, which are less compatible with printing processes.


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