Hygroscopic effects on AuCl3-doped carbon nanotubes

Il Ha Lee, Un Jeong Kim, Hyung Bin Son, Seon Mi Yoon, Fei Yao, Woo Jong Yu, Dinh Loc Duong, Jae Young Choi, Jong Min Kim, Eun Hong Lee, Young Hee Lee

Research output: Contribution to journalArticlepeer-review

34 Scopus citations

Abstract

Hygroscopic effects on AuCl3-doped single-walled carbon nanotubes (SWCNTs) were investigated. Various concentrations of AuCl3 solution were dropped on the random network SWCNT transistors, where the doping effect was confirmed by I-Vg characteristics and a blue shift in the Raman G band. The AuCl3-doped SWCNT transistor was highly sensitive to water vapor in the I-Vg curve, especially in the positive gate bias region, compared with the undoped SWCNT transistors. We also found the selective response of water from ambient gases, such as O2 and N 2, in AuCl3-doped SWCNTs. This investigation could be beneficial for high-performance water sensor applications.

Original languageEnglish
Pages (from-to)11618-11622
Number of pages5
JournalJournal of Physical Chemistry C
Volume114
Issue number26
DOIs
StatePublished - 8 Jul 2010

Fingerprint

Dive into the research topics of 'Hygroscopic effects on AuCl3-doped carbon nanotubes'. Together they form a unique fingerprint.

Cite this