The role of defects in chemical sensing properties of carbon nanotube films

Zsolt E. Horváth, Antal A. Koós, Krisztián Kertész, György Molnár, Gábor Vértesy, Márton C. Bein, Tamás Frigyes, Zoltán Mészáros, József Gyulai, László P. Biró

Research output: Contribution to journalArticle

21 Citations (Scopus)

Abstract

The electrical resistance of 24 different carbon nanotube (CNT) thin film samples in blowing ambient air and 10 different analyte vapor environments was measured. The effects of the CNT growth method, different chemical treatments, ball milling, sample preparation conditions and Ar+-ion irradiation are compared. Significant differences in the response signal curves as a function of time in the case of the studied sensor/vapor combinations show the important role of the defect structure and attached functional groups in the chemical sensing properties of CNTs.

Original languageEnglish
Pages (from-to)495-504
Number of pages10
JournalApplied Physics A: Materials Science and Processing
Volume93
Issue number2
DOIs
Publication statusPublished - Nov 1 2008

ASJC Scopus subject areas

  • Chemistry(all)
  • Materials Science(all)

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