Low threshold voltage ZnSe:Mn thin-film electroluminescent cells prepared by molecular-beam growth method

Au/ZnSe:Mn/n-GaAs and Al/ZnSe:Mn/ITO dc-operated electroluminescent (EL) cells were prepared by molecular-beam epitaxy (MBE) and molecular-beam deposition(MBD), respectively. The threshold voltages achieved in each type of EL cells are lower than any other values reported so far. The ZnSe : Mn layer grown by MBE on a GaAs substrate was single-crystalline while the ZnSe:Mn layer deposited by MBD on an ITO-coated glass substrate was polycrystalline, only