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There are a lot of "Chalcogenides",
meaning compounds with "Chalcogens", i.e. S, Se, and Te as major elements (O, in the
same IIa group, forms "oxides"). |
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The general recipe is to form a IB - IIIA - VI compound. In group IB we have essentially Cu, Ag, Au;
in group IIIA we find B, Al,
Ga, In. |
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That allows us, for example, to produce CuInS2 or CuInSe2
("CIS"), but also Cu3In5Se9, Cu2In4Se7
- look up the link for many more. |
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Like before, we can "mix", e.g. produce
CuInxGa1-xSySe2-y and so on. In case of doubt we call the whole family
"CIGS". |
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It certainly looks like there is plenty of work left for you,
but "CIS" or "CIGS" solar cells are actually on the market. |
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Moreover, there are "simple" chalcogenides like CdTe, which are on the market
for solar cells but not even contained in the long list in the link from above. |
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We obviously have a big success story here. We will look at some of this later
in more detail. |
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© H. Föll (Semiconductor Technology - Script)
