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.
|Number of pages||10|
|Journal||Applied Physics A: Materials Science and Processing|
|Publication status||Published - Nov 1 2008|
ASJC Scopus subject areas
- Materials Science(all)