Nano Science and Technology Institute
Nanotech 2007 Vol. 3
Nanotech 2007 Vol. 3
Technical Proceedings of the 2007 NSTI Nanotechnology Conference and Trade Show, Volume 3
Chapter 1: MEMS/NEMS

Manufacturable, Highly Responsive Nanowire Mercury Sensors

Authors:S. Keebaugh, W.J. Nam and S.J. Fonash
Affilation:The Pennsylvania State University, US
Pages:33 - 36
Keywords:nanowire, sensor, mercury, detection
Abstract:We have developed a manufacturable and highly responsive gold nanowire sensor capable of detecting ppb concentrations of mercury in air and water. The nanowire sensor exhibits a superior response compared to thin film sensors and we have observed that this response is closely related to the morphology of the nanowire. By carefully controlling the sensor fabrication and post-processing steps, we are able to reproduce smooth, continuous nanowire morphologies and consequently obtain highly responsive and manufacturable sensors. Additionally, these nanowire sensors are very robust and capable of withstanding regeneration temperatures without significant changes in the nanowire morphology or baseline electrical properties.
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