PURIFICATION OF CARBON NANOTUBES VIA SELECTIVE HEATING

摘要

The present invention provides methods for purifying a layer of carbon nanotubes comprising providing a precursor layer of substantially aligned carbon nanotubes supported by a substrate, wherein the precursor layer comprises a mixture of first carbon nanotubes and second carbon nanotubes; selectively heating the first carbon nanotubes; and separating the first carbon nanotubes from the second carbon nanotubes, thereby generating a purified layer of carbon nanotubes. Devices benefiting from enhanced electrical properties enabled by the purified layer of carbon nanotubes are also described.

主权项

1. A method for purifying a layer of carbon nanotubes comprising:
providing a precursor layer of substantially aligned carbon nanotubes supported by a substrate, wherein said precursor layer comprises a mixture of first carbon nanotubes and second carbon nanotubes; covering said precursor layer of carbon nanotubes with a thermocapillary resist, wherein said thermocapillary resist is in thermal contact with at least a portion of said carbon nanotubes; selectively heating said first carbon nanotubes, thereby causing thermocapillary flow of said thermocapillary resist away from said first carbon nanotubes to expose said first carbon nanotubes; and separating said first carbon nanotubes from said second carbon nanotubes, thereby generating a purified layer of carbon nanotubes.