𝔖 Bobbio Scriptorium
✦   LIBER   ✦

Understanding the scattering mechanism of single-walled carbon nanotube based gas sensors

✍ Scribed by Jun Zhong; Jinghua Guo; Bin Gao; Jau-Wern Chiou; Jiong Li; Wangsheng Chu; Way-Faung Pong; Chinglin Chang; Yi Luo; Ziyu Wu

Publisher
Elsevier Science
Year
2010
Tongue
English
Weight
903 KB
Volume
48
Category
Article
ISSN
0008-6223

No coin nor oath required. For personal study only.

✦ Synopsis

In the interaction between gas molecules with single-walled carbon nanotube (SWCNT) we show that as a result of collisions the gas scattering contributes with an important background signal and should be considered in SWCNT-based gas sensors. Experimental evidence of the collision-induced tube wall deformation is demonstrated using in situ X-ray absorption near-edge structure spectroscopy. Results support the occurrence of the scattering process and show how gas collisions may affect the electronic structure of SWCNTs.

πŸ“œ SIMILAR VOLUMES

Gas sensors based on thick films of semi
Gas sensors based on thick films of semi-conducting single walled carbon nanotubes
✍ Yann Battie; Olivier Ducloux; Philippe Thobois; Nelly Dorval; Jean SΓ©bastien Lau πŸ“‚ Article πŸ“… 2011 πŸ› Elsevier Science 🌐 English βš– 1004 KB

A comparative study was made of sorted semi-conducting single walled carbon nanotube (SWCNT) films and unsorted SWCNT films for gas sensing applications. The transmission line method is used to monitor separately the SWCNTs film resistance and the contact resistance between electrodes and the SWCNTs

On the mechanics of single-walled carbon
On the mechanics of single-walled carbon nanotubes
✍ L.C. Zhang πŸ“‚ Article πŸ“… 2009 πŸ› Elsevier Science 🌐 English βš– 598 KB

This review paper discusses some basics in using continuum mechanics and molecular dynamics to characterize the deformation of single-walled carbon nanotubes (SWCNTs). It identifies that the van der Waals force between SWCNTs in a bundle distributes symmetrically and influences the bundle formation,