Low-Power/High-Gain Flexible Complementary Circuits Based on Printed Organic Electrochemical Transistors
Artikel i vetenskaplig tidskrift, 2022

The ability to accurately extract low-amplitude voltage signals is crucial in several fields, ranging from single-use diagnostics and medical technology to robotics and the Internet of Things (IoT). The organic electrochemical transistor (OECT), which features large transconductance values at low operating voltages, is ideal for monitoring small signals. Here, low-power and high-gain flexible circuits based on printed complementary OECTs are reported. This work leverages the low threshold voltage of both p-type and n-type enhancement-mode OECTs to develop complementary voltage amplifiers that can sense voltages as low as 100 µV, with gains of 30.4 dB and at a power consumption of 0.1–2.7 µW (single-stage amplifier). At the optimal operating conditions, the voltage gain normalized to power consumption reaches 169 dB µW−1, which is >50 times larger than state-of-the-art OECT-based amplifiers. In a monolithically integrated two-stage configuration, these complementary voltage amplifiers reach voltage gains of 193 V/V, which are among the highest for emerging complementary metal-oxide-semiconductor-like technologies operating at supply voltages below 1 V. These flexible complementary circuits based on printed OECTs define a new power-efficient platform for sensing and amplifying low-amplitude voltage signals in several emerging beyond-silicon applications.

voltage amplifiers


organic electrochemical transistors

organic mixed ion-electron conductors


Chi Yuan Yang

Linköpings universitet

Deyu Tu

Linköpings universitet

Tero Petri Ruoko

Linköpings universitet

Jennifer Y. Gerasimov

Linköpings universitet

Han Yan Wu

Linköpings universitet

Padinhare Cholakkal Harikesh

Linköpings universitet

Matteo Massetti

Linköpings universitet

Marc Antoine Stoeckel

Linköpings universitet

Renee Kroon

Linköpings universitet

Christian Müller

Chalmers, Kemi och kemiteknik, Tillämpad kemi

M. Berggren

Linköpings universitet

n-Ink AB

S. Fabiano

Linköpings universitet

n-Ink AB

Advanced Electronic Materials

2199-160X (ISSN)

Vol. 8 3 2100907



Marin teknik

Annan elektroteknik och elektronik



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