ZnO-Based Metal-Insulator-Semiconductor UV Light-Emitting Diodes Prepared by Ion Implantation

Document Type

Article

Publication Date

1-1-2003

Identifier/URL

40971222 (Pure)

Abstract

In this paper, we describe the N/sup +/-ion implantation of Ga doped ZnO films grown by chemical vapor deposition on a sapphire substrate. Depositing an appropriate metal onto this system can create a metal-insulator-semiconductor (MIS) type diode. Such ZnO-based MIS diodes, and their emission properties are discussed. The ohmic contact, to the lower conducting ZnO insulating layer, is made by indium. Current-voltage measurements shows good, rectifying diode-like behavior, with a threshold voltage near 3 V, and a reverse current of about 10/sup -6/ A. Under forward bias, ultraviolet emission is observed at room temperature (RT), with a wavelength maximum at /spl sim/388 m (/spl sim/3.197 eV).

Comments

This paper was presented at the 2003 International Semiconductor Device Research Symposium, December 10-12, 2003, Washington, D.C.

DOI

10.1109/ISDRS.2003.1271959

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