Patent ID: 8133822
Filing Date: 2012-03-13
Classification: C23C,H01L

Abstract:
1. A method for forming a silicon (Si) nanocrystal embedded Si oxide electroluminescence (EL) device with a mid-bandgap transition layer, the method comprising: providing a highly doped Si bottom electrode; forming a mid-bandgap electrically insulating dielectric film overlying the Si bottom electrode; depositing a Si nanocrystal embedded SiOx film overlying the mid-bandgap electrically insulating dielectric film, where X is less than 2, using a high density plasma-enhanced chemical vapor deposition (HDPECVD) process as follows; subsequent to depositing a SiOx film layer, annealing; in response to the annealing, embedding Si nanocrystals in the SiOx film layer; forming a transparent top electrode overlying the Si nanocrystal embedded SiOx film; and, where the bandgap of the mid-bandgap electrically insulating dielectric film is about half that of the bandgap of the Si nanocrystal embedded SiOx film.