Electrically actuated device and method of controlling the formation of dopants therein

摘要

An electrically actuated device includes a first electrode, a second electrode, and an active region disposed between the first and second electrodes. The device further includes at least one of dopant initiators or dopants localized at an interface between i) the first electrode and the active region, or ii) the second electrode and the active region, or iii) the active region and each of the first and second electrodes.

主权项

1. An electrically actuated device, comprising:
a first electrode; a second electrode; an active region disposed between the first electrode and the second electrode; a layer established adjacent to i) the first electrode at a surface opposed to the active region, or ii) the second electrode at a surface opposed to the active region, or iii) each of the first and second electrodes at respective surfaces opposed to the active region, the layer including dopant initiators; mobile dopants localized in a mobile dopant layer at an interface between a portion of the active region and i) the first electrode, or ii) the second electrode, or iii) each of the first and second electrodes, the mobile dopants being formed from a chemical reaction between an other portion of the active region and at least some dopant initiators diffused from the layer, the mobile dopants selected from the group consisting of charged interstitials, charged vacancies, or charged impurities; and at least some other of the dopant initiators, diffused from the layer, present in grain boundaries of the i) the first electrode, or ii) the second electrode, or iii) the first and second electrodes.