High sensitivity gravimetric sensor made of carbon fiber epoxy composite on Pb(Mg1/3Nb2/3)O3-PbTiO3 single crystal substrate

Naixing Huang, Tianquan Lü, Rui Zhang, Wenwu Cao

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Abstract

We have derived a general formula for sensitivity optimization of gravimetric sensors and use it to design a high sensitivity gravimetric sensor using unidirectional carbon fiber epoxy composite (CFEC) guiding layer on (1-x)Pb(Mg1/3Nb2/3)O3-xPbTiO3 (PMN-xPT) single crystal substrate. The normalized maximum sensitivity (| S m f | λ) max exhibits an increasing tendency with the decrease of (h / λ) opt. For the CFEC/[011]c poled PMN-0.29PT sensor configuration with λ = 24 μm, the maximum sensitivity | S m f | max can reach as high as 1230 cm2/g, which is about 3 times that of a traditional SiO2/ST quartz configuration gravimetric sensor.

Original languageEnglish (US)
Article number053507
JournalApplied Physics Letters
Volume103
Issue number5
DOIs
StatePublished - Jul 29 2013

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy (miscellaneous)

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