Dynamically-controlled exciton transport has been demonstrated in a 2D transition metal dichalcogenide (TMD) using surface acoustic waves (SAWs). Researchers in the US and Japan used the SAWs to induce mechanical strain in a tungsten diselenide sample at room temperature, resulting in a maximum net exciton shift of nearly 1 micron. This work is a big step toward room temperature, practical excitonic devices including cooler and more efficient electronics.
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