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Please use this identifier to cite or link to this item: http://hdl.handle.net/2108/601

Title: Gas sensor based on single wall carbon nanotubes
Authors: Di Carlo, Aldo
Reale, Andrea
Lucci, Massimiliano
Keywords: SWCNT
gas sensor
dielectrophoresis
NH3
NO2
H2
Issue Date: 1-Sep-2008
Abstract: Single-walled carbon nanotubes (SWNTs) are nowadays one of the most investigated materials and the realization of ordered SWNT structures is of fundamental importance for the improvement of many technological fields, from the non-linear optics to the realization of transistor, to the assembly of gas sensing devices. A SWNT is formed by rolling a graphene sheet into a seamless cylinder with a diameter on the nanometer scale. The individual SWNTs are joined each other and assembled into bundles by Van der Waals forces. Guest molecules can potentially interact with SWNTs via the outer surfaces of bundles, the inside of the tubes and /or the interstitial channels between the tubes in a bundle. These different situations are expected to play an important role in tuning the guest molecule/SWNT interaction during gas adsorption and/or desorption, and have been investigated theoretically and experimentally using different approaches. In particular, the interaction between gaseous mole...
Description: 19. ciclo
URI: http://hdl.handle.net/2108/601
Appears in Collections:Tesi di dottorato in ingegneria

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