By changing the cubic silicon structure to a hexagonal nanowire structure, scientists managed to develop photon-based silicon alloy circuitry that may replace electron-based transistors. The photon-based material prevents electron traffic jams, overheating and transmission slowdowns caused by cramming too many transistors.
https://www.notebookcheck.net/Scientists-develop-photon-based-silicon-circuitry-that-could-make-Moore-s-Law-obsolete.461662.0.html