Patent ID: 9450117
Filing Date: 2016-09-20
CPC Classification: H01L,Y02E,Y02P

Claim Text:
1. An optoelectronic device having a surface periodic grating structure, comprising: a substrate; a multi-layer semiconductor structure layer formed on the substrate; and a periodic grating structure layer embedded in the multi-layer semiconductor structure layer by etching, the periodic grating structure layer being performed with a design on a surface of the multi-layer semiconductor structure layer based on parameters including an optimized period between 200 nm and 3.6 um, a filling factor of 0.5 and a depth; wherein the substrate, the multi-layer semiconductor structure layer and the periodic grating structure layer form the optoelectronic device; wherein an incident light to the optoelectronic device is configured to pass through the periodic grating structure layer to enter the multi-layer semiconductor structure layer, and a direction of the incident light is changed to become a horizontal light parallel to the surface of the multi-layer semiconductor structure layer and resonant to the multi-layer semiconductor structure layer, such that a transmitting path of the incident light in the multi-layer semiconductor structure layer is extended to enhance optoelectricity of the optoelectronic device.