POS5-1493
Contact Resistance in Organic Electrochemical Transistors
Topic
S5. Polymers for Electronics and Photonics
When and Where
Sep 29, 2026
08:30 - 09:30
Room 301 (Grand Ballroom)
Session Chairs
Hae Jung SON
Boseok KANG
Presenter(s)
Tae Hoon Kim (Seoul National University)
Co-Author(s)
Abstract
Organic electrochemical transistors (OECTs) operate based on ion-induced electrochemical doping of an organic semiconductor channel and have emerged as a key platform in organic electronics. Their inherently high transconductance enables efficient conversion of ionic inputs into electrical outputs, making them particularly attractive for biosensing applications. While achieving high transconductance and stable OECTs have motivated new molecular designs and device architectures such as vertical OECTs, contact resistance effects have been discussed relatively less. Here, we identify the major sources of contact resistance and examine how their effects become more pronounced as the transconductance of OECTs increases. We further investigate the associated performance loss and device-to-device nonuniformity in integrated OECT arrays.
