Manifold sensitivity improvement of swelling-based sensors |
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Authors: | AlQahtani Hadi Alduraibi Mohammad Richardson Tim Grell Martin |
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Affiliation: | Department of Physics and Astronomy, University of Sheffield, Hounsfield Rd, Sheffield S3 7RH, UK. php08hra@sheffield.ac.uk |
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Abstract: | The sensitivity of swelling-based gold core-organic shell nanoparticle vapor sensors is improved manifold by cooling sensors below ambient temperature. This is due to the reduced volatility of the analyte. Sensitivity to a particular analyte scales with temperature like that of analyte's saturated vapor pressure, thus allowing quantitative prediction of sensitivity enhancement. We believe our conclusions apply to all swelling-based sensors. |
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