Patent ID: 6608360
Filing Date: 2003-08-19
Classification: H01L,Y02E,Y02P

Abstract:
An optoelectronic device for providing light emission or detection, comprising:an optically transparent substrate; an optically transparent semiconductor layer on the substrate, the semiconductor layer being selected from the group of substances consisting of III-V nitride compounds and having a top surface; an amorphous silicon layer on a first area of the top surface of the semiconductor layer, the amorphous silicon layer having a selected thickness to provide tunneling from a Schottky barrier and produce avalanche electroluminescence and detection; a layer of metal on the amorphous silicon layer, the metal forming a Schottky barrier and being selected to provide low diffusion rate of the metal through the amorphous silicon layer under conditions of deposition of the layer, and an ohmic contact to the layer of metal; and an ohmic contact on a second area of the top surface of the semiconductor layer.