[IEEE 2012 9th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology (ECTI-CON 2012) - Phetchaburi, Thailand (2012.05.16-2012.05.18)] 2012 9th International Conference on Electrical Engineering/Electronics, Computer, Telecommunications and Information Technology - All inkjet-printed chemical gas sensors based on CNT/polymer nanocomposites: Comparison between double printed layers and blended single layer