azonano.comByAkshatha Chandrashekar
Acoustic Waves Generate Tunable Nanoampere Currents Without Rectifiers
By coupling a high-mobility semiconductor to a piezoelectric substrate, researchers tested whether surface acoustic waves could deliver stable microcurrents without conventional rectifier circuitry.
Paper: Wireless acoustic-driven current source achieving nanoampere-level at millimeter-scale. AI-generated abstract conceptual image created using ChatGPT/OpenAI
A recent study in Nature Communications presents an acoustically driven current source that generates tunable electrical currents ranging from 1.22 nA to 25.46 μA under direct RF excitation and can also be powered wirelessly. The researchers combined a high-mobility InSb semiconductor with a lithium niobate piezoelectric substrate to convert radiofrequency energy into direct current through the acoustoelectric effect.
Addressing the…
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