Twisted Electrodes Lead to Washable Electronics

Jul-06-19 A fibrous transistor that can be woven into clothing and survive washing helps pave the way to truly wearable electronics.

Current thread-like transistors are made up of a flat transistor deposited on a conductive thread, which requires a high voltage and only creates a low current. In contrast, the new KIST transistor is made up of twisted electrodes coated with an organic semiconductor. The length of the threads and thickness of the semiconductor can be adjusted to generate currents more than a thousand times higher than current devices, even at low voltages, and the transistor still offered a performance level of more than 80 percent even after being bent more than one thousand times and washed in water containing detergent.

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