TY - GEN
T1 - Investigation of nanofibrous film coating effect on surface acoustic wave sensors
AU - Liu, Sai
AU - Wang, Pengtao
AU - Song, Minghao
AU - Sun, Hongwei
PY - 2010
Y1 - 2010
N2 - Electrospinning is reported in this paper as a new coating approach for surface acoustic wave (SAW) sensor in order to enhance its chemical detection capability. Ultrafine (100 - 300 nm) polyethylene oxide (PEO) fibrous film with controlled thickness and porosity were electrospun-coated on the surface of a ST-X quartz based SAW sensor. Compared to the conventional solid thin film coating techniques, the nanofiber-coated SAW sensor shows a higher sensitivity and faster response. A theoretical analysis was performed to characterize the SAW sensor response with nanofibrous film coating. The nanofibrous film provides a high surface area to volume ratio, which can not only offer more adsorption sites for vapor molecules, but also shortens the diffusion length of vapor molecules into polymer material. It is concluded that the nanofiber film holds a great potential in enhancing SAW sensor performance for trace level detection of chemical analytes.
AB - Electrospinning is reported in this paper as a new coating approach for surface acoustic wave (SAW) sensor in order to enhance its chemical detection capability. Ultrafine (100 - 300 nm) polyethylene oxide (PEO) fibrous film with controlled thickness and porosity were electrospun-coated on the surface of a ST-X quartz based SAW sensor. Compared to the conventional solid thin film coating techniques, the nanofiber-coated SAW sensor shows a higher sensitivity and faster response. A theoretical analysis was performed to characterize the SAW sensor response with nanofibrous film coating. The nanofibrous film provides a high surface area to volume ratio, which can not only offer more adsorption sites for vapor molecules, but also shortens the diffusion length of vapor molecules into polymer material. It is concluded that the nanofiber film holds a great potential in enhancing SAW sensor performance for trace level detection of chemical analytes.
UR - http://www.scopus.com/inward/record.url?scp=84881464499&partnerID=8YFLogxK
U2 - 10.1115/IMECE2010-39390
DO - 10.1115/IMECE2010-39390
M3 - Conference contribution
AN - SCOPUS:84881464499
SN - 9780791844472
T3 - ASME International Mechanical Engineering Congress and Exposition, Proceedings (IMECE)
SP - 701
EP - 705
BT - ASME 2010 International Mechanical Engineering Congress and Exposition, IMECE 2010
T2 - ASME 2010 International Mechanical Engineering Congress and Exposition, IMECE 2010
Y2 - 12 November 2010 through 18 November 2010
ER -