Patent ID: 7982231

Claim:
A silicon-based light emitting diode using a side reflecting mirror, comprising: a p-type silicon substrate having a plurality of grooves; a light emitting diode layer formed on each of the grooves of the silicon substrate, the light emitting diode layer including an active layer, an n-type doped layer, and a transparent electrode layer; and a metal electrode including a lower metal electrode formed on the bottom surface of the p-type silicon substrate and an upper metal electrode formed on the top surface of the transparent electrode layer, wherein a lateral surface of each of the grooves is separated from the light emitting diode layer and used as a reflecting mirror, and the lateral surface is referred to as the side reflecting mirror, and wherein the active layer is formed of one of crystalline silicon nano-size dots and amorphous silicon nano-size dots, wherein: the n-type doped layer and the transparent electrode layer are sequentially formed on the active layer; and the upper metal electrode formed on the transparent electrode layer has a shape of a ring that is formed on the edges of the transparent electrode layer when viewed in plan view.