Browsing by Author "Djebah, A"

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    Optical characterization of pyrolytically deposited ZnxCd1−xS thin films
    ( Optical Materials, 1998-09) Adedeji, A.U; Ojo, I.A.O; Djebah, A
    The precursor bis-(morpholinodithioato-s,s′)–Cd–Zn was prepared and the thin films of ZnxCd1−xS deposited on sodalime glass substrate. A direct optical energy gap of 2.63 eV was obtained from the analysis of the absorption spectrum. The photoluminescence spectrum shows shift in the energy of the primary emission peaks as a function of the excitation energy. The shift was explained as due to the quantum size effect in nanometer thick polycrystalline films. Energy Dispersive X-ray Florescence (EDXRF) confirms the elemental composition of both the precursor and the films