Future of Engineering
Thursday, April 10, 2008
Organic Field-effect Transistors (OFET) - for Tags, Bar-codes, Active Matrix Elements
Since the invention of the first transistor in 1947 by John Bardeen, William Shockley and Walter Brattain, the vast majority of electronic devices have been based on inorganic semiconductors and, in particular, on silicon. Over the past few years, however, organic field-effect transistors (OFETs) have attracted a great deal of interest due to their unique processing characteristics. Organic materials offer the benefit that they can be printed over large areas on plastic, flexible substrates at low temperature by solution-based techniques, which would result in a dramatic reduction of manufacturing costs. Though the first OFETs did not transport charge as well as inorganic materials, the best ones nowadays are achieving charge carrier mobilities of the same order as amorphous silicon. Organic-based electronics will not replace high density and high speed silicon circuits, but might play an important role in applications such as identification tags, electronic bar codes or active matrix elements for displays.
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Labels: Electronics-Communications-Engineering
PermaLink - Organic Field-effect Transistors (OFET) - for Tags, Bar-codes, Active Matrix Elements posted by Ecacofonix : 4:33 AM
