| http://www.w3.org/ns/prov#value | - forming a structure including a stack of semiconductor layers overlying a host substrate, said stack including an active region, said active region comprising a semiconductor selected from the group consisting of III-Phosphides, III-Arsenides, and alloys thereof; attaching a superstrate to a first side of said structure, said superstrate substantially transparent to light emitted by said active re
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