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Updated: May 3, 2026

Fabrication of a Solution-gated Indium-Tin-Oxide-based One-piece Transistor Enabling Sensitive Biosensing
Published on: August 29, 2025
Low-voltage protonic/electronic hybrid indium zinc oxide synaptic transistors on paper substrates
Guodong Wu1, Changjin Wan, Jumei Zhou
1Nanjing University, School of Electronic Science and Engineering, Nanjing 210093, Jiangsu, People's Republic of China. Ningbo Institute of Material Technology and Engineering, Chinese Academy of Sciences, Ningbo, 315201, People's Republic of China.
Abstract:
Low-voltage (1.5 V) indium zinc oxide (IZO)-based electric-double-layer (EDL) thin-film transistors (TFTs) gated by nanogranular proton conducting SiO2 electrolyte films are fabricated on paper substrates. Both enhancement-mode and depletion-mode operation are obtained by tuning the thickness of the IZO channel layer. Furthermore, such flexible IZO protonic/electronic hybrid EDL TFTs can be used as artificial synapses, and synaptic stimulation response and short-term synaptic plasticity function are demonstrated. The protonic/electronic hybrid EDL TFTs on paper substrates proposed here are promising for low-power flexible paper electronics, artificial synapses and bioelectronics.
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