Gently vibrating a solution of semiconductor molecules as they crystallize into a conductive film helps to reduce structural flaws. This yields higher-quality organic transistors that can be used in flexible, lightweight electronic devices. A team led by Oana Jurchescu of Wake Forest University in Winston-Salem, North Carolina, used audio speakers operating at a low-frequency of around 100 hertz to shake molecules as they formed a thin crystalline film (apparatus pictured).
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