NDLI: Electrical noise in gold nanoparticle chemiresistors: Effects of measurement environment and organic linker properties

Content Provider	IEEE Xplore Digital Library
Author	Hubble, L. Wieczorek, L. Muller, K. Chow, E. Cooper, J. Raguse, B.
Copyright Year	2010
Description	Author affiliation: Future Manufacturing Flagship, Lindfield NSW 2070, Australia (Hubble, L.; Wieczorek, L.; Muller, K.; Chow, E.; Cooper, J.; Raguse, B.)
Abstract	This study was conducted to assess and characterize the intrinsic electrical noise associated with thiolate functionalized gold nanoparticle films utilized as chemiresistor sensors. Recently, this sensor type has been demonstrated to have liquid-based sensing capabilities. Differences in the thermal noise component of the different thiolate functionalized nanoparticle films in ambient air and in deionized water are detailed. Comparable values are found between real impedance values and resistance values derived from the Nyquist equation, in the frequency domain, for differing chemical measurement environments. Voltage-biased studies in aqueous media demonstrate the device's retention of the intrinsic 1/f noise, known to exist in gold nanoparticle chemiresistors operating in ambient air. These results have implications on the ultimate sensitivity of devices utilized for liquid-based analyte detection.
Starting Page	37
Ending Page	40
File Size	1035282
Page Count	4
File Format	PDF
ISBN	9781424452613
DOI	10.1109/ICONN.2010.6045169
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-02-22
Publisher Place	Australia
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Gold Chemical sensors Films electrical noise Noise gold nanoparticle noise prefactor 1/f noise chemiresistor Thermal noise Sensors thermal noise flicker noise Floors
Content Type	Text
Resource Type	Article

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