Wednesday, July 28, 2010

US Patent 7763885 - Organic thin film transistor having surface modified CNTs

In organic transistors high contact resistances can result in an increase in driving voltages and inefficient operation. This patent from Samsung teaches how surface-modified carbon nanotubes can be used to alleviate this problem. Claim 1 reads:

1. A transistor structure comprising:

an organic semiconductor layer including surface-modified carbon nanotubes and an electrically-conductive polymer,

wherein the surface-modified carbon nanotubes have surfaces modified with a curable functional group, the curable functional group being directly bound to the carbon nanotubes through an oxygen atom of the curable functional group.