Drift characteristic analysis of additive manufactured Ag NPs-PEDOT:PSS flexible temperature sensor

Abstract

Additive manufactured flexible sensors have prospect applications in wearable devices, healthcare, soft robotics, and metaverse scenarios. However, there is still performance gaps between the emerging additive manufactured flexible sensors and traditional subtractive manufactured rigid sensors. Temporal drift characteristic, as one of the important performance parameters of sensors, was evaluated and analyzed with inkjet printed Ag NPs-PEDOT:PSS flexible temperature sensor, and the potential influence mechanism were explained from the glass transition of the substrate, the swelling effect of water molecules, and melting effect of silver nanoparticles perspective, thereby providing solutions for bridging the performance gaps of additive manufactured flexible sensors.