WHAT DOES FE²�?ZNS CRYSTAL MEAN?

However, this peak at ~978 nm was observed in equally iron-doped and -undoped ZnSe one crystals, and its built-in intensity was increased inside the iron-undoped sample in comparison with the iron-doped sample. Consequently, we think that the luminescence peak at ~978 nm is just not connected with the emission band involving the doped iron atoms bu