High Performance Pressure Sensor using Ferroelectric Polymer Nanofiber

The thin film consisting of arrayed organic piezoelectric nanofibers is capable to generate high output voltage and 3D flexibility.
KRI will propose R&D projects for device application using the new sensor, e.g. wearable sensors with human affinity, and so on.

Background & purpose of the research

  • ●KRI has know-how to form many kind of the electrospun nanofibers, and can control their orientation leading to form transparent and highly flexible nanofabric films consisting various organic polymer.

  • ●Novel pressure sensor is created by nanofabric films made from piezoelectric organic polymer accompanied by the suitable polarization and electrode formation.

Characteristics of this item

1. Piezoelectric transducer made of Organic polymer nanofiber
  • Very thin nanofabric film with fiber of 50-100nm in diameter induces piezoelectric characters.
2. Output anisotropy & output voltage
  • High voltage output is selectively obtained along to the fiber axis.
  • Also electric insulation is confirmed across to the fiber axis after making electrode as a sensor.
3. Flexible & thin film
  • The nanofabric film with high flexibility is capable to fit to very complicated 3D objects. It is not so cold and stiff sensation that superior in human-affinity.
4. High sensitive sensor
  • High sensitive sensor with output of ca.40mV is consisting of nano-sized fiber sensor units.

Proposal from KRI

  • ●KRI will propose R&D project for device application of the new pressure sensor using ES nanofabric films, which has output selectivity along to the fiber axis.

  • ●Highly biocompatible soft devices made from ES nanofabric film will bring about novel wearable devices, robots and medical devices.