Researchers at the University of Michigan have developed nanoengineered exciton-based switches that reduce heat loss by 66%, rivalling the performance of top electronic switches. The design uses a tungsten diselenide monolayer on a nanoridge to control excitons, marking a leap toward efficient devices that bridge the gap between electronics and photonics.Researchers at the University of Michigan have developed nanoengineered exciton-based switches that reduce heat loss by 66%, rivalling the performance of top electronic switches. The design uses a tungsten diselenide monolayer on a nanoridge to control excitons, marking a leap toward efficient devices that bridge the gap between electronics and photonics.