[22a-C105-1~10] 12.3 Functional Materials and Novel Devices

△ [22a-C105-9] Ultrathin Mesh-type Polymer Thermistors for Ultraflexible Protection Circuits

〇Chihiro Okutani^1,2, Tomoyuki Yokota¹, Takao Someya¹ (1.Univ. of Tokyo, 2.Shinshu Univ.)

Keywords:flexible device, polymer PTC thermistor, mesh electronics

We developed polymer positive temperature coefficient thermistors with mesh structures that can provide gas-permeability. The thermistor layer was composed of a mesh structure with ultrathin fibers of approximately 6 μm, and exhibited an increase in resistance by more than 2000 times between 35 and 37°C (2°C). This sharp increase in resistance is expected to be applied in protection circuits, especially in long-term wearable devices that require gas-permeability.