DEPARTMENT OF ELECTRICAL AND ELECTRONIC ENGINEERING

Permanent URI for this communityhttps://repository.ui.edu.ng/handle/123456789/478

Browse

Filters

1984 - 198941990 - 19982

Settings

End date: 1999

Search Results

Now showing 1 - 6 of 6
  • Thumbnail Image
    Item
    Post-graduate experience
    (1998) Fakolujo, O. A.
  • Thumbnail Image
    Item
    E-beam induced decomposition of inorganic solids
    (Martinus Nijhoff Publishers, 1988) Green, M.||||; Aidinis, C.; Fakolujo, O.
    A general model for the e-beam induced decomposition of covalent and ionin inorganic solids is outlined. The primary electron beam produces enegetic electron/hole pairs; these decay to the band edges, and either recombine or participate in the chemical decomposition of the solid. The kinetics and mechanism of several system is discussed, including CdCl2 and PbI2. The importance of temparature in decomposition is remarked and it is suggested that induced decomposition is remarked and it is suggested that induced decomposition mostly starts at 0.6 melting point (K). The usefulness of various inorganic systems, as resists, for x-ray masks, for local indiffusion sources and for metal inter-connects is noted.
  • Thumbnail Image
    Item
    Cadmium chloride thin films: hydration-dehydration
    (Elsevier Sequoia, 1987) Green, M.; Fakolujo, O. A.
  • Thumbnail Image
    Item
    Post-graduate professional experience in electronic and electrical engineering
    (1994) Kamil, I. A.
    A brief but illustrative account of the author's acquired experience in the areas of consultancy, teaching and research, and repair and maintenance is presented
  • Thumbnail Image
    Item
    Photovoltaic characteristics of thin films of Cu2SnS3
    (Elsevier, 1987) Kuku, T. A.; Fakolujo, O. A.
    We report for the first time the optical absorbtion and photovoltaic characteristics of thin films of Cu2SnS3.Films obtained by the direct evaporation of the synthesized compound were observed to be deficient in copper, while those grown in an atmosphere of copper vapour were observed to be more stoichiometric. Both sets of films are characterised by indirect and direct absorption edge propoerties. The indirect absorption edges are at 1.065 and 1.510 eV, while the direct band edges are at 1.658 and 1.770 eV for the copper deficient and stoichiometric films respectively. The stoichiometric film is characteried by p-type semiconducting properties while a Schottky type solar cell developed from it is observed to have potential photovoltaic characteristics
  • Thumbnail Image
    Item
    Electron beam decomposition of CdCl2
    (American Institute of Physics., 1984) Green, M.; Aidinis, C. J.; Fakolujo, O. A.
    The e-beam stimulated reaction, CdCl2 (s)----Cd(s) + 2Cl(g), has been studied in cadmium chloride thin films between 303 and 483K using 2-keV electrons. The dose required to make 90-mm-deep holes at 483K is 3 X10-3 Ccm-2. Extrapolated dosing levels of ~6X10-5 C cm-2 are expected. The use of CdCl2 as a positive-type electron resist in a new scheme is proposed. A working model, useful for considering the e-beam stimilated decomposition energetics and mechanism, is briefly discussed.