Electrical properties of field-effect transistors based on C60 nanowhiskers

Abstract

We fabricate field-effect transistors (FETs) based on C60 nanowhiskers (C60 NWs) and investigate their structural and electrical properties. Thermally annealed C60 NWs show x-ray powder-diffraction spectra that are consistent with a similar fcc structure to that of C60 bulk crystals, although with a slightly reduced lattice constant (a=13.9Å). The C60 NW-FETs exhibit n-channel, normally-on, properties (or FETs) and their carrier mobility is estimated to be 2×10−2cm2∕Vs under vacuum conditions at room temperature.

An extinction of the conductive electrons of fullerene nano whisker as the air exposure effects

“…These FNW have been used as the channel of organic FETs [8] and as a material for PVC [9]. At the same time, some interesting features, such as the solvent dependence of the crystal structure [10], and structural modification due to evaporation of the crystal solvent [11], have also been reported.…”

“…This annealing process has also been utilized in prior studies of nanowhisker-based FET devices [8], to remove solvent and gas molecules.…”

Long-term Growth Investigation of C₆₀ Fullerene Nanowhiskers

“…In 1985, Kroto et al discovered C 60 [1], and its physical and chemical properties and the applications in semiconductors, superconductors, medicine, composite materials and so on have been studied [2,3,4,5]. In 2001, fine needle-like crystals composed of C 60 , "C 60 nanowhiskers (C 60 NWs)" were discovered in a colloidal solution of PZT containing C 60 [6].…”

“…The application study of fullerene nanowhiskers and fullerene nanotubes have been developed recently in field-effect transistors (FETs) [2], solar cells [16] and biosensors like the electrodes using C 60 NTs deposited with DNA [17].…”

Raman Laser Polymerization ofC60Nanowhiskers

“…C 60 NWs have a variety of applications and such as field-effect transistors (FETs) [3], solar cells [4], biosensors [5].…”