Proceedings of nanoGe Spring Meeting 2022 (NSM22)
DOI: https://doi.org/10.29363/nanoge.nsm.2022.060
Publication date: 7th February 2022
Organic electrochemical transistors (OECTs) are in a stage of rapid development as novel applications that use these versatile devices continue to emerge. OECTs are characterized by the coupling of both ionic and electronic inputs to modulate transistor channel conductance, which makes them ideal for interfacing electronics with biology. However, the current performance mismatch between p-type (hole-transporting) and n-type (electron-transporting) OECTs hinders the development of power-efficient complementary devices/circuits, essential to many (bio-)electronic applications. Here, we will summarize our effort to develop n-type mixed ionic-electronic conducting polymers for OECTs. We will discuss the impact of polymer backbone rigidity and molecular weight on the OECT performance. We will show large-area printing/integration of these devices and demonstrate neurosynaptic circuits capable of Hebbian learning.