Switching characteristics of hydrogenated amorphous silicon/crystalline silicon heterojunction devices

Abstract
A new structure of a three-terminal hydrogenated amorphous silicon/crystalline silicon (a-Si:H/c-Si) heterojunction switching device is successfully developed. The device can be controlled by a gate bias. The switching voltage, holding voltage, and switching current all increase with an increase of undoped a-Si:H thickness. The electrical characteristics and switching phenomena of this device are discussed.