Patent ID: 7569864

Claim:
A silicon-rich-oxide (SRO) white light photodiode, comprising: (a) a first substrate; (b) an SRO film layer having a sub-stoichiometric silicon (Si) oxide film deposited on a surface of said first substrate by using a Plasma-Enhanced Chemical Vapor Deposition (PEVCD) procedure, said Si oxide film having a ratio smaller than 2 of oxygen atomicity to Si atomicity, said Si oxide film distributed with a plurality of Si nano-grains; and c) a photodiode having a second substrate producing an ultraviolet light, said SRO film layer adhered to said photodiode, wherein the ultraviolet light emitted by the photo diode exciting said plurality of Si nano-grains of said SRO film layer and said SRO film layer producing a white light having a continuous light spectrum having a wave length between 400 nm and 700 nm, wherein said SRO film layer is located between said first substrate and said second substrate, said SRO film layer directly contacting said first substrate along an entire length of said SRO film layer.