Electronically Pure Single-Chirality Single-Walled Carbon Nanotube

摘要

Single-walled carbon nanotube (SWCNT) networks deposited from a purple (6,5) single chirality SWCNT aqueous solution were electrically characterized as pure semiconductors based on metal/semiconductor Schottky contacts using both complex instrument and portable device. The large scale NMOS (n-type metal-oxide-semiconductor) devices were fabricated on these (6,5) SWCNT thin films showing fA off current and I_(ON)/I_(OFF) ratio ＞ 10~8. The single chirality and uniform diameter of (6,5) SWCNT can mitigate the variation of carbon nanotube electric properties, and chemical and bio interfaces, rendering promising carbon nanotubes for practical applications in electronics and bio-sensing.