Patent ID: 6815247
Filing Date: 2004-11-09
Classification: H01L,Y02E,Y02P

Abstract:
A method for fabricating a thin-film opto-electronic device on a conductive silicon-containing substrate comprising the steps of growing a sequence of layers including at least the steps of:a) forming a porous silicon layer on said substrate having a thickness in the range from 0.1 &mgr;m to 1 &mgr;m such that said porous silicon layer acts as a light diffuser and as a light reflector; b) growing a non-porous layer on said porous silicon layer, aid non-porous layer comprising at least one first region and at least one second region being formed in said non-porous layer, said first region of a first conductivity type, said second region of a second conductivity type, different from said first conductivity type, and said sequence of layers being such that optical confinement is realised in said device.