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Adsorbed mass fluctuations of a micro/nanoresonator surrounded by an arbitrary gas mixture

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2006
Authors
Đurić, Zoran G.
Jakšić, Olga
Jokić, Ivana
Frantlović, Miloš
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Abstract
Micro/nanoresonator mass and frequency fluctuations caused by sorption processes on a resonator surface are investigated. Arbitrary gas mixture is considered. assuming that particle arrivals at the surface are all poissonian in nature. independent from each other, and that sorption dynamics follows the Langmuir isotherm. Power spectral density for mass fluctuations are derived using the analytical Langevin approach. The results of simulations are given for a silicon micro/nanocantilever in the atmosphere of four gases. The presented analysis is useful for calculation of the ultimate performance of MEMS/NEMS sensors and oscillators, as well as for investigation of the possibilities of their parameters optimization by choosing the gas mixture in the cantilever's atmosphere. Another objective is to consider the possibility of identification of gases in the mixture, based on the power spectral density of the adsorbed mass fluctuation.
Keywords:
cantilevers / gas mixtures / isothermal transformations / Langmuir-Blodgett films / micromechanical resonators / microsensors / sorption / Micromechanical devices / Nanoelectromechanical systems / Gas detectors
Source:
25th International Conference on Microelectronics, MIEL 2006 - Proceedings, 2006, 103-
Publisher:
  • Institute of Electrical and Electronics Engineers Inc.
Projects:
  • Serbian Ministry of Science
  • TR6151 - Micro and Nanosystem Technologies, Structures and Sensors

DOI: 10.1109/ICMEL.2006.1650904

ISBN: 1-4244-0117-8

ISSN: 2159-1660

WoS: 000238839700015

Scopus: 2-s2.0-77956511905
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URI
http://cer.ihtm.bg.ac.rs/handle/123456789/253
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