Semiconducting Carbon Nanotubes: Properties, Characterization and Selected Applications

Abstract

Carbon nanotubes are challenging materials from the point of view of nanotechnology, because of their peculiar electrical, mechanical and optical properties arising from their monodimensional geometry. Here, the properties of carbon nanotubes are discussed, starting from their crystalline structure, in order to understand their optical, electrical and vibrational behavior. In the second section, the most popular CNT synthesis mechanism are presented, while the last section is devoted to the CNTs applications, focusing on photovoltaic and gas sensor devices.

A cross-functional nanostructured platform based on carbon nanotube-Si hybrid junctions: where photon harvesting meets gas sensing

“…CNTs are also well known as the building block of many gas sensing devices 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 . Gas interaction with CNTs is known to produce remarkable resistivity changes, depending on the oxidizing or reducing nature of the gas.…”