Polymeric nanowire chemical sensor Academic Article

abstract

• We have used a nonlithographic deposition process to form single polymeric nanowire chemical sensors. Oriented polyaniline nanowires, with diameters on the order of 100 nm, were deposited on gold electrodes. The devices showed a rapid and reversible resistance change upon exposure to NH3 gas at concentrations as low as 0.5 ppm. The well-defined single-wire geometry allows for the characterization of the wire material and the device response. The response times of nanowire sensors with various diameters correspond to radius-dependent differences in the diffusion time of ammonia gas into the wires. The nanowire deposition process, utilizing a scanned microfabricated electrospinning source, presents a general method for interfacing polymeric nanowire devices with microfabricated structures.

authors

• Kameoka, Jun

published proceedings

• NANO LETTERS

altmetric score

• 9

author list (cited authors)

• Liu, H. Q., Kameoka, J., Czaplewski, D. A., & Craighead, H. G.

citation count

• 650

complete list of authors

• Liu, HQ||Kameoka, J||Czaplewski, DA||Craighead, HG

publication date

• April 2004

publisher

• American Chemical Society (ACS)  Publisher

published in

• Nano Letters: a journal dedicated to nanoscience and nanotechnology  Journal

keywords

• 40 Engineering
• 4018 Nanotechnology
• 46 Information And Computing Sciences
• 4605 Data Management And Data Science
• Bioengineering

Digital Object Identifier (DOI)

• 10.1021/nl049826f

start page

• 671

end page

• 675

volume

• 4

issue

• 4

URL

• http%3A%2F%2Fdx.doi.org%2F10.1021%2Fnl049826f