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- W3105253670 abstract "Applying high-k dielectrics can effectively reduce the operating voltage of OFETs to a few volts, thus significantly miniaturizing the dynamic power consumption of OFETs. Aluminum oxide is known as a promising dielectric material for its high permittivity (k=6–9). In this work, a simple, low-cost, low-temperature (only 85 °C) solution process is used to prepare amorphous AlOx dielectric thin films for high-performance flexible OFET applications. The AlOx thin film was spin-coated and then solidified using deep ultraviolet irradiation without high-temperature annealing. The as-deposited AlOx thin film has a root mean square surface roughness of 0.47 nm and maintains a very low leakage current density of 8×10−9 A/cm2 at 3.5 MV/cm and high dielectric constant of about 8.3 (at 1 kHz). The complete OFET based on this dielectric can operate at a 3 V gate bias with saturation mobility of 1.8 cm2/Vs, and steep sub-threshold swing of 110 mV/dec. Our work demonstrated a low-temperature solution process to fabricate a high-k metal oxide dielectric for low-power OFET applications." @default.
- W3105253670 created "2020-11-23" @default.
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- W3105253670 date "2020-11-16" @default.
- W3105253670 modified "2023-10-16" @default.
- W3105253670 title "A Low-Temperature Solution-Process High-k Dielectric for High-Performance Flexible Organic Field-Effect Transistors" @default.
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- W3105253670 doi "https://doi.org/10.3389/fmats.2020.570002" @default.
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