Abstract

Laterally coupled indium-zinc-oxide electric-double-layer (EDL) transistors gated by solution-processed sodium alginate electrolyte films are self-assembled on glass substrates. Due to the strong EDL effect, a low-operation voltage of 1.5 V, a high-current ON/OFF ratio of ~3.1 × 10 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">6</sup> and a high-electron mobility of ~8.8 cm <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sup> /Vs are obtained. Furthermore, AND logic operation is demonstrated when two in-plane gate electrodes are used as the input terminals. Such low-voltage laterally coupled oxide EDL transistors have potential applications in portable biosensors and synaptic electronics.

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