Effect of UV irradiation on adsorption/desorption of oxygen and water on carbon nanotubes

Eric S. Muckley, Anthony J. Nelson, Christopher B. Jacobs, Ilia N. Ivanov

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

4 Scopus citations

Abstract

Carbon nanotube (CNT) films composed of semiconducting single wall nanotubes (s-SWNTs), metallic single wall nanotubes (m-SWNTs), and multiwall nanotubes (MWNTs) were exposed to O2 and H2O vapor in the dark and under UV irradiation. Changes in the film conductivity and mass were measured in situ. We find that UV irradiation increases the resistive response of CNT films to O2 and H2O by more than an order of magnitude. In m-SWNT and MWNT films, UV irradiation changes the sign of the resistive response to O2 and H2O by generating free charge carriers. S-SWNTs show the largest UV-induced resistive response and exhibit weakening of van der Waals interactions with the QCM crystal when exposed to gas/vapor.

Original languageEnglish
Title of host publicationOrganic Photonic Materials and Devices XVIII
EditorsFrancois Kajzar, Christopher E. Tabor, Toshikuni Kaino, Yasuhiro Koike
PublisherSPIE
ISBN (Electronic)9781628419801
DOIs
StatePublished - 2016
EventOrganic Photonic Materials and Devices XVIII - San Francisco, United States
Duration: Feb 15 2016Feb 17 2016

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume9745
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceOrganic Photonic Materials and Devices XVIII
Country/TerritoryUnited States
CitySan Francisco
Period02/15/1602/17/16

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