title: A carbon-nanotube-based sensor array for formaldehyde detection.
abstract: We have fabricated a sensor array consisting of 32 sensor elements with pristine, doped and metal-loaded single-wall carbon nanotubes as sensing materials. The sensor elements consist of interdigitated electrodes with varying finger widths and gaps. The chemiresistor-type sensors provide a significant response to formaldehyde at concentrations down to 10 ppb in air with rapid response and recovery times.
authors.affiliation: NASA Ames Research Center, Moffett Field, CA 94035, USA.
authors.forename: Yijiang
authors.initials: Y
authors.lastname: Lu
authors.forename: M
authors.initials: M
authors.lastname: Meyyappan
authors.forename: Jing
authors.initials: J
authors.lastname: Li