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In this study, titanium oxide($TiO_2$)/polyvinyl alcohol(PVA) electrospun composite nanofibers were used as a humidity sensing layer. The electrospinning behavior was observed to investigate the influence of different concentrations of $TiO_2$. In order to secure the structural stability of the sensing layer, which was dissolved under conditions of high humidity, the PVA-based sensing layer was crystallized at $180^{\circ}C$. The humidity sensing properties, including the impedance versus relative humidity and response-recovery time, were found to improve because of the structural advantage of the fiber-shaped sensing layer and the hydrophillic inorganic particles. Furthermore, The humidity sensing mechanism could be elucidated via the complex impedance plots and corresponding equivalent circuit.
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참고문헌 (19)
참고문헌 신청
B. Cramariuc / 2013 / Fiber Diameter in Electrospinning Process / J. Electrostat 71:189~198
D. H. Reneker / 2000 / Bending Instability of Electrically Charged Liquid Jets of Polymer Solutions in Electrospinning / J. Appl. Phys 87:4531~4547
A. L. Yarin / 2001 / Bending Instability in Electrospinning of Nanofibers / J. Appl. Phys 89:3018~3026
S. J. Choi / 2016 / Online Measurement of Electrospinning Jet Velocity of Polyvinyl Alcohol / Int. Polym. Proc 31:285~291
J. Ding / 2014 / Piezoelectric Immunosensor with Gold Nanoparticles Enhanced Competitive Immunoreaction Technique for 2,4-dichlorophenoxyacetic Acid Quantification / Sensor. Actuat. B-Chem 193:568~573
D. H. Reneker / 2000 / Bending Instability of Electrically Charged Liquid Jets of Polymer Solutions in Electrospinning / J. Appl. Phys 87:4531~4547
A. L. Yarin / 2001 / Bending Instability in Electrospinning of Nanofibers / J. Appl. Phys 89:3018~3026
S. J. Choi / 2016 / Online Measurement of Electrospinning Jet Velocity of Polyvinyl Alcohol / Int. Polym. Proc 31:285~291
J. Ding / 2014 / Piezoelectric Immunosensor with Gold Nanoparticles Enhanced Competitive Immunoreaction Technique for 2,4-dichlorophenoxyacetic Acid Quantification / Sensor. Actuat. B-Chem 193:568~573
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