Suspended polymer nanobridge on a quartz resonator

Minhyuk Yun; Seongjae Lee; Changyong Yim; Namchul Jung; Thomas Thundat; Sangmin Jeon

doi:10.1063/1.4817259

Suspended polymer nanobridge on a quartz resonator

Minhyuk Yun
, Seongjae Lee
, Changyong Yim
, Namchul Jung
, Thomas Thundat
, Sangmin Jeon

Pohang University of Science and Technology
University of Alberta

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

18 Scopus citations

Abstract

A chemical vapor sensor based on a free-standing polystyrene (PS) nanofilm suspended between the tines of a quartz tuning fork (QTF) is demonstrated. Exposure to ethanol vapor decreased the modulus of the PS membrane, which resulted in a decrease in the resonance frequency of the QTF as a function of ethanol concentration. The suspended PS membrane structure on the QTF allowed gas molecules to diffuse into the membrane from both the top and bottom allowing faster response. The QTF response time was found to be 6.5 times faster than the response time of a conventional PS film-coated resonator sensor.

Original language	English
Article number	053109
Journal	Applied Physics Letters
Volume	103
Issue number	5
DOIs	https://doi.org/10.1063/1.4817259
State	Published - 29 Jul 2013

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title = "Suspended polymer nanobridge on a quartz resonator",

abstract = "A chemical vapor sensor based on a free-standing polystyrene (PS) nanofilm suspended between the tines of a quartz tuning fork (QTF) is demonstrated. Exposure to ethanol vapor decreased the modulus of the PS membrane, which resulted in a decrease in the resonance frequency of the QTF as a function of ethanol concentration. The suspended PS membrane structure on the QTF allowed gas molecules to diffuse into the membrane from both the top and bottom allowing faster response. The QTF response time was found to be 6.5 times faster than the response time of a conventional PS film-coated resonator sensor.",

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AU - Yun, Minhyuk

AU - Lee, Seongjae

AU - Yim, Changyong

AU - Jung, Namchul

AU - Thundat, Thomas

AU - Jeon, Sangmin

PY - 2013/7/29

Y1 - 2013/7/29

N2 - A chemical vapor sensor based on a free-standing polystyrene (PS) nanofilm suspended between the tines of a quartz tuning fork (QTF) is demonstrated. Exposure to ethanol vapor decreased the modulus of the PS membrane, which resulted in a decrease in the resonance frequency of the QTF as a function of ethanol concentration. The suspended PS membrane structure on the QTF allowed gas molecules to diffuse into the membrane from both the top and bottom allowing faster response. The QTF response time was found to be 6.5 times faster than the response time of a conventional PS film-coated resonator sensor.

AB - A chemical vapor sensor based on a free-standing polystyrene (PS) nanofilm suspended between the tines of a quartz tuning fork (QTF) is demonstrated. Exposure to ethanol vapor decreased the modulus of the PS membrane, which resulted in a decrease in the resonance frequency of the QTF as a function of ethanol concentration. The suspended PS membrane structure on the QTF allowed gas molecules to diffuse into the membrane from both the top and bottom allowing faster response. The QTF response time was found to be 6.5 times faster than the response time of a conventional PS film-coated resonator sensor.

UR - https://www.scopus.com/pages/publications/84882404085

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JO - Applied Physics Letters

JF - Applied Physics Letters

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Suspended polymer nanobridge on a quartz resonator

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