Scaling of micro-fabricated nanometer-sized Schottky diodes
Diodes on the nanometer scale generally show non-ideal transport characteristics. In this paper, the transition of a conventional Schottky diode to a nano-diode is investigated. It is shown that electrostatic effects in small lithographically fabricated diodes can lead to a considerably thinner Schottky barrier, with the consequence of a greatly enhanced tunnelling current. We present numerical simulations as well as analytical calculations of the potential barrier shape in small devices, demonstrating this scaling effect. Special focus is placed on the role of the interconnects.
schottky diode interconnect nanometer-scale electrical transport