Multi-layer pressure sensor designed for pressure ranges up to 500 bars: poly crystalline organic molecular metal is at play

摘要

The paper is addressed to the modern technologies that need to be instrumented with flexible highly sensitive pressure sensors. We present and discuss a design approach for engineering compact flexible layered pressure sensors that contain the polycrystalline layer of the β-(BEDT-TTF)2I3 organic molecular metal as a highly piezo-resistive component. The strategy is based on the integration of the pressure sensing p-(BEDT-TTF)2I3/polycarbonate bilayer film and a set of gold electrodes into one compact multi-layer design. The pressure test demonstrated that the developed sensor construction measures pressure up to 500 bars with outstanding electrical response.