An in-situ surface modification route for realizing the synergetic effect in P3HT-SnO2 composite sensor and strikingly improving its sensing performance
P3HT-SnO2 composite gas sensors were fabricated via a new in-situ surface modification route. P3HT-SnO2 composite gas sensors exhibited higher sensor response and excellent selectivity for detecting NO2 of few ppm. The synergetic effect between P3HT and SnO2 greatly improved the performance of composite gas sensors.