RESEARCH FOCUS
Organic electrochemical
electronics.
Ion transport, polymer channels, and adaptive electronic devices.
HTK Lab’s interests lie in mixed ionic–electronic conduction: how ions moving through a polymer change its electrical response, and how that response can be used in sensing and adaptive circuits.
Explore the research focus
01 / RESEARCH
Materials, devices
and circuits
In an organic electrochemical transistor (OECT), an electrolyte couples the gate to a polymer channel. Ions enter or leave the channel, changing its conductivity throughout the material. This gives the device a useful connection between chemical signals and electrical readout.
Mixed conduction
The relationship between ion uptake, electronic charge transport, and polymer structure. A central question is how to balance a strong electrical response with fast, reversible switching.
Device dynamics
Transient response, hysteresis, and stability under repeated operation. These behaviours matter when a transistor must distinguish a changing input from drift in the device itself.
Neuromorphic circuits
Using electrochemical dynamics to explore synaptic responses and spiking behaviour. The interest is in what the device physics can contribute to a circuit, rather than treating the transistor as an ideal switch.
02 / READING
Background literature
Selected papers from the wider field.
Organic electrochemical transistors
Rivnay et al. · Nature Reviews Materials, 3, 17086
doi: 10.1038/natrevmats.2017.86Organic electrochemical neurons and synapses with ion mediated spiking
Nature Communications, 13, 901
doi: 10.1038/s41467-022-28483-6Vertical organic electrochemical transistors for complementary circuits
Nature, 613, 496–502
doi: 10.1038/s41586-022-05592-203 / CONTACT
Correspondence
For questions about the research focus or to share relevant work:
contact@htklab.com