Ion transport to temperature and gate in organic electrochemical transistors with anti-freezing hydrogel

All-printed and stretchable organic electrochemical transistors using a hydrogel electrolyte

“…42 Ko et al demonstrated selfhealing OECTs by introducing poly(vinyl alcohol) hydrogel to the active channel material. 43 Liu et al reported OECTs with a dual network anti-freezing hydrogel composed of crosslinked polyacrylamide and carrageenan, 44,45 able to operate at −30 °C. They also studied the neuromorphic behavior and transient response of the devices.…”

Hydrogels for next generation neural interfaces

“…In this regard, hydrogels, especially hydrogels with excellent capability of patterning, offer unique advantages in future construction of bioelectronic circuits for in vivo applications 113,114 . In recent studies, OECTs based on hydrogel electrolyte demonstrated transconductance (g m ) values comparable to the counterpart devices based on liquid electrolyte 111 , reaching 16 mS 115 .…”