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Understanding the scattering mechanism of single-walled carbon nanotube based gas sensors
KTH, School of Biotechnology (BIO), Theoretical Chemistry.
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2010 (English)In: Carbon, ISSN 0008-6223, E-ISSN 1873-3891, Vol. 48, no 7, 1970-1976 p.Article in journal (Refereed) Published
Abstract [en]

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.

Place, publisher, year, edition, pages
2010. Vol. 48, no 7, 1970-1976 p.
Keyword [en]
X-RAY-ABSORPTION, INTERCALATED GRAPHITE, CHEMICAL SENSORS, FINE-STRUCTURE, SPECTROSCOPY, ADSORPTION, PHOTOEMISSION, SENSITIVITY, BUNDLES
National Category
Engineering and Technology
Identifiers
URN: urn:nbn:se:kth:diva-28260DOI: 10.1016/j.carbon.2010.02.003ISI: 000276920900015Scopus ID: 2-s2.0-77949489810OAI: oai:DiVA.org:kth-28260DiVA: diva2:387594
Funder
Swedish Research Council
Note
QC 20110114Available from: 2011-01-14 Created: 2011-01-12 Last updated: 2017-12-11Bibliographically approved

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Luo, Yi

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