Disclosed herein are optically and electrically actuatable devices. The optically and electrically actuatable device includes an insulating substrate, two electrodes, an active region, and a concentrator. At least one of the two electrodes is established on the insulating substrate, and another of the two electrodes is established a spaced distance vertically or laterally from the at least one of the two electrodes. The other of the two electrodes is an optical input electrode. The active region is established between or beneath the two electrodes. The concentrator is optically coupled to the optical input electrode for concentrating incident light such that a predetermined portion of the active region is optically actuatable.