Please use this identifier to cite or link to this item:
|Title:||Giant Humidity Response Using a Chitosan-Based Protonic Conductive Sensor||Authors:||Zou, Jianping
|Issue Date:||2016||Source:||Zou, J., Zhang, K., & Zhang, Q. (2016). Giant Humidity Response Using a Chitosan-Based Protonic Conductive Sensor. IEEE Sensors Journal, 16(24), 8884-8889.||Series/Report no.:||IEEE Sensors Journal||Abstract:||As a natural biopolymer, chitosan has a very unique protonic conductivity that is highly sensitive to water vapor. However, there has been no report on pure chitosan-based resistive humidity sensors, probably due to the difficulty of direct-current measurement of protonic current in chitosan. Here, a simple and cost-effective chitosan-based protonic conductive humidity sensor is presented. The sensor exhibits a large conductance response of four orders of magnitude when relative humidity is increased from 10% up to 90%. The effects of adsorbed water on proton density and dielectric constant change of chitosan could be responsible for the giant humidity response. More importantly, the sensor shows high stability, repeatability, recoverability, and selectivity to water vapor over ethanol, acetone, and toluene vapors.||URI:||https://hdl.handle.net/10356/85996
|ISSN:||1530-437X||DOI:||10.1109/JSEN.2016.2616484||Rights:||© 2016 IEEE.||Fulltext Permission:||none||Fulltext Availability:||No Fulltext|
|Appears in Collections:||EEE Journal Articles|
Items in DR-NTU are protected by copyright, with all rights reserved, unless otherwise indicated.