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Stacking Turns Organic Transistors Up

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The vertical electrochemical transistor is based on a new kind of electronic polymer and a vertical, rather than planar, architecture.

Credit: Northwestern University

Scientists in the U.S. and China have adopted a vertical framework to produce high-performance organic electrochemical transistors (OECTs

Stacking OECTs like sandwiches supports switching speeds that exceed 1 kilohertz, stability across more than 50,000 cycles, less than 100-nanometer-long channel lengths, and transconductances of 200 to 400 millisiemens.

The researchers sandwiched the channel between a bottom source electrode and a top drain electrode; the channel consists of a semiconducting ion-permeable compound combined with a polymer that adds robustness and stability, while an electrolyte lies atop the channel and drain electrodes.

 The researchers said they could manufacture these transistors in a simple, scalable manner using standard fabrication methods.

From IEEE Spectrum
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Abstracts Copyright © 2023 SmithBucklin, Washington, DC, USA


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