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Quantum 1/f noise in bio-chemical resonant ZnO sensors
University of Missouri-Saint Louis.ORCID iD: 0000-0002-2718-0262
2007 (English)In: Noise and Fluctuations, 2007, Vol. 922, 339-342 p.Conference paper, Published paper (Refereed)
Abstract [en]

Resonant sensors are based on the adsorption of a mass delta m of the biological or chemical agent on the surface of the resonant element. Corresponding antibodies with efficiency x are deployed on the resonator face. The adsorption gets detected by a reduction y =delta omega/omega =-kappa delta m/m of the resonance frequency omega of the ZnO crystal. However, the latter is also subject to fundamental Q1/f frequency fluctuations with spectrum S-y(f). The quantum 1/f limit of detection is given by (delta m/m)(min)=(2ln2)(1/2)[S-y(1Hz)](1/2)/kappa.

Place, publisher, year, edition, pages
2007. Vol. 922, 339-342 p.
Series
AIP CONFERENCE PROCEEDINGS, ISSN 0094-243X ; 922
Keyword [en]
bio-sensors, bio-detectors, chemical sensors, quantum 1/f noise, piezoceramics, phase noise
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-34958DOI: 10.1063/1.2759696ISI: 000249049500071OAI: oai:DiVA.org:kth-34958DiVA: diva2:427358
Conference
19th International Conference on Noise and Fluctuations Tokyo, JAPAN, SEP 09-14, 2007
Note
QC 20110628Available from: 2011-06-28 Created: 2011-06-17 Last updated: 2011-11-21Bibliographically approved

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Händel, Peter

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