P1FW.2 - Chitosan-Based Polymer Electrolytes Containing Various- Shaped Metal Nanoparticles and Development of Flexible Electrochemical Gas Sensors
- 17th International Meeting on Chemical Sensors - IMCS 2018
2018-07-15 - 2018-07-19
- P-1 - Flexible, Stretchable and Wearable Sensors
- J. Lim, J. Kim - Department of Chemistry, Chosun University, Gwangju (South Korea), J. Park - Department of Materials Science and Engineering, Chosun University, Gwangju (South Korea)
- 512 - 513
With the emergence of wearable devices and internet of things (IoT), it is expected that small, flat, and flexible sensors will be required for these applications. One of the prerequisites for sensor to be applied to such fields is the development of polymer electrolytes with high ionic conductivity. Since most polymer electrolytes have low ionic conductivity, various nanoparticles and organic materials have been used as fillers and plasticizers, respectively, to increase ionic conductivity. Many phenomenological studies have been done, but the mechanism of how the ionic conductivity increases is not well understood. In this study, we investigate the relationship between the ionic conductivity and the material and morphology of nanoparticles, and explore the role of fillers in polymer electrolytes. As a further study, we report on a planar and flexible electrochemical gas sensor fabricated using an optimized polymer electrolyte.