| http://www.w3.org/ns/prov#value | - The region or regions that are present can comprise at least one constituent that is chosen from a metal, a transparent conductive oxide, a chalcopyrite-type semiconductor; cadmium (e.g., a compound including cadmium, such as cadmium sulphide), a nitride of silicon (SiNx) or an oxide of silicon (SiOx).
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