0–3 Polymer/Barium Titanate Nano Structures Based Flexible Piezoelectric Film

We report a flexible, light weight and low cost piezoelectric polymer composite film produced from polydimethylsiloxane and barium titanate nanoparticle composite. Simple spin coating is employed for obtaining the thin film with aluminum foils as top and bottom electrodes. The composite film exhibits a maximum open circuit voltage of 350 mV across the thickness during vertical press/release. The open circuit voltage response is dependent on the force applied on the film. Experiment proves that the piezo property of the polymer composite film is obtained due to the addition of BaTiO 3 Nps. It has great potential to be used in printed and flexible Sensors.