Development of printable electronic materials for low cost flexible sensor fabrication

We discuss the low cost development of flexible capacitive sensors by using functional materials for real time applications. In this research work, vinyl and siloxane based polymers was formulated at different ratios to achieve printing parameters for even deposition with the help of screen printing techniques. In order to develop a printed sensor element, these polymers were binded with conductive carbon and dielectric nano materials to enhance the sensor sensitivity. Printed sensors are fabricated on a flexible substrate to achieve high flexibility and bendability. Thermal and UV curing method is used to dry the electronic materials after deposition at various phenomena. The performance analysis of sensors is calculated by measuring the resistance and capacitance for an applied mechanical pressure. The basic electronic circuit was designed to read the sensor data with respect to frequency of 100 Hz for sensing applications.