Patent ID: 9627564
Date: 2017-04-18
CPC Classifications: H01L,Y02E

Claim:
1. An optoelectronic device comprising: a first conductive layer, a second conductive layer, an active layer between the first conductive layer and the second conductive layer, wherein the active layer comprises a plurality of submicrometer size thin films of silicon in layer form having a hexagonal crystal structure, each thin film of silicon in layer form having a hexagonal crystal structure being sandwiched between silicon films with diamond crystalline structure, each thin film of silicon having a hexagonal crystal structure being stabilized through a permanent constraint exerted on two opposing sides of said thin film by silicon films with diamond crystalline structure, said permanent constraint originating from a lattice mismatch between silicon having a hexagonal crystal structure and the silicon having a diamond crystalline structure, and the thickness of each thin film of silicon having a hexagonal crystal structure being lower than a critical thickness beyond which the thin film develops dislocations.