Biodegradable Natural Pectin-Based Polysaccharide-Gated Low-Voltage Flexible Oxide Thin-Film Transistors for Logic Applications AITranslate

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DOI：https://doi.org/10.1021/acsaelm.2c00687

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Electronic waste is one of the fastest growing kinds of waste in the world, and to reduce which, the biodegradable electronics are regarded as an important eco-friendly alternative to the environmentally hazardous ones. Here, biodegradable indium-tin-oxide (ITO) thin-film transistors (TFTs) are fabricated on flexible PET substrates with pectin-based polysaccharide films taken as gate dielectrics. For the basic performance, such biodegradable TFTs have not only exhibited excellent characteristics such as a low operating voltage of 1.0 V, a high current ON/OFF ratio (>107), a low subthreshold swing of 80 mV/dec, and a carrier mobility of 14.5 cm2V–1 s–1, but have also realized several important logic operations, such as NOT, AND, NAND, and so on. Additionally, for the eco-friendly purpose, the TFT arrays can be completely dissolved in water within 20 min. Based on the results achieved, the pectin-based biodegradable oxide transistors prepared here are expected to provide a possible choice for the fabrication of biodegradable electronics by using natural biomaterials.