title: Vapor detection performance of vertically aligned, ordered arrays of silicon nanowires with a porous electrode.
abstract: Vertically aligned, ordered arrays of silicon nanowires capped with a porous top electrode are used to detect gas phase ammonia and nitrogen dioxide in humidified air. The sensors had very fast response times and large signal-to-noise ratios. Calibration curves were created using both an initial slope method and a fixed-time point method. The initial-slope method had a power law dependence that correlates well with concentration, demonstrating a viable alternative for eventual quantitative vapor detection and enabling shorter sampling and regeneration times.
authors.forename: Christopher R
authors.initials: CR
authors.lastname: Field
authors.forename: Hyun Jin
authors.initials: HJ
authors.lastname: In
authors.forename: Nathan J
authors.initials: NJ
authors.lastname: Begue
authors.forename: Pehr E
authors.initials: PE
authors.lastname: Pehrsson