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{"ops":[{"insert":"why does this compound turn from a semiconductor into a conductor?\n\nWhat is a good explanation for the perovskite compound Cs8Pb8I24 being a semiconductor?\nBut by replacing 2 Pb with In & Bi (Cs8(InBi)Pb6I24) the compound becomes a conductor with zero bandgap\nLater on, if you replace all Pb with In & Bi (Cs8(In4Bi4)I24) the compound is semiconductor again but with a much smaller bandgap than the original compound.\n\nCan anyone help me on how to explain this, please?\n\n"}]}
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