Polymeric nanowire chemical sensor

Haiqing Liu; Jun Kameoka; David A. Czaplewski; Harold G. Craighead

doi:10.1021/nl049826f

Polymeric nanowire chemical sensor

Haiqing Liu, Jun Kameoka, David A. Czaplewski, Harold G. Craighead

Research output: Contribution to journal › Article › peer-review

656 Scopus citations

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.

Original language	English (US)
Pages (from-to)	671-675
Number of pages	5
Journal	Nano Letters
Volume	4
Issue number	4
DOIs	https://doi.org/10.1021/nl049826f
State	Published - Apr 1 2004

ASJC Scopus subject areas

Bioengineering
Chemistry(all)
Materials Science(all)
Condensed Matter Physics
Mechanical Engineering

Access to Document

10.1021/nl049826f

Cite this

@article{108301642efe453aaec35ce36243af03,

title = "Polymeric nanowire chemical sensor",

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.",

author = "Haiqing Liu and Jun Kameoka and Czaplewski, {David A.} and Craighead, {Harold G.}",

year = "2004",

month = apr,

day = "1",

doi = "10.1021/nl049826f",

language = "English (US)",

volume = "4",

pages = "671--675",

journal = "Nano Letters",

issn = "1530-6984",

publisher = "American Chemical Society",

number = "4",

}

TY - JOUR

T1 - Polymeric nanowire chemical sensor

AU - Liu, Haiqing

AU - Kameoka, Jun

AU - Czaplewski, David A.

AU - Craighead, Harold G.

PY - 2004/4/1

Y1 - 2004/4/1

N2 - 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.

AB - 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.

UR - http://www.scopus.com/inward/record.url?scp=2342514708&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=2342514708&partnerID=8YFLogxK

U2 - 10.1021/nl049826f

DO - 10.1021/nl049826f

M3 - Article

AN - SCOPUS:2342514708

VL - 4

SP - 671

EP - 675

JO - Nano Letters

JF - Nano Letters

SN - 1530-6984

IS - 4

ER -

Polymeric nanowire chemical sensor

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this