Patent ID: 9570694
Date: 2017-02-14
CPC Classifications: H01L

Claim:
1. A method of fabricating a transparent thin film transistor, comprising: printing a concentrated aqueous metallic carbon nanotube solution on a substrate to form separated metallic carbon nanotube source and drain electrode layers on the substrate, the metallic carbon nanotube source and drain electrode layers defining a channel space there between; cleaning the metallic carbon nanotube source and drain electrode layers by soaking in a mild acid to form cleaned metallic carbon nanotube source and drain electrode layers; curing the cleaned metallic carbon nanotube source and drain electrode layers by heating to form cured metallic carbon nanotube source and drain electrode layers; and then printing an aqueous semiconducting carbon nanotube solution in the channel space on the substrate to form a carbon nanotube channel semiconductor layer; cleaning the carbon nanotube channel semiconductor layer by soaking in another mild acid to form a cleaned carbon nanotube channel semiconductor layer; printing an ionic gel dielectric on the cleaned carbon nanotube channel semiconductor layer at room temperature to form an ionic gel dielectric layer thereon; and then curing the ionic gel dielectric layer by heating.