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Browsing Departments Science and Engineering by Author "Harris, John A."

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Browsing Departments Science and Engineering by Author "Harris, John A."

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  • Arshak, Khalil; Hickey, Ger; Forde, Edward; Harris, John A. (IEEE Computer Society, 2007)
    Thin films of Indium-zinc-tin oxide have been prepared by Vacuum Thermal Evaporation (VTE). The sensing characteristics of these films to environmentally relevant ozone concentrations were studied at room temperature. The ...
  • Arshak, Arousian; Zleetni, S.M.; Arshak, Khalil; Harris, John A. (IEEE Computer Society, 2001)
    The dosimetry properties of thermally evaporated Copper Phthalocyanine (CuPc) thin films were investigated. The conduction mechanism of the asdeposited films was found to be space-charge-limited and their relative ...
  • Arshak, Khalil; Korostynska, Olga; Szumilas, L.; Harris, John A.; Clifford, S.A. (IEEE Computer Society, 2004)
    In2O3 and SiO mixtures into thick film pn-junctions form were investigated for γ-radiation dosimetry purposes. Results show that the current is increased with the increase in radiation dose to a certain level, exceeding ...
  • Lyons, G.M.; Arshak, Khalil; Cavanagh, Leon M.; Gaidan, Ibrahim; Moore, Edward G.; Clifford, S.A.; Phelan, R.; Cunniffe, Colm; Harris, John A. (IEEE Computer Society, 2004)
    The response of screen-printed thick-films of NiO/TiO2 to organic solvent vapours was studied. It was found that these films displayed a significant resistance change in response to the vapours even at room temperature. ...
  • Arshak, Khalil; Cunniffe, Colm; Moore, Edward G.; Cavanagh, Leon M.; Harris, John A. (IEEE Computer Society, 2005)
    Presented in this paper is a process for manufacturing copper electrode patterns on alumina substrates using thin film deposition, spin coating and printed circuit board (PCB) etching techniques. The process was used for ...
  • Arshak, Khalil; Hickey, Ger; Harris, John A.; Forde, Edward (IEEE Computer Society, 2008)
    This work investigates the ozone sensing properties of NbO2 thin films operating at room temperature. NbO2 thin films have been deposited on alumina and glass substrates provide with Cu interdigitated electrodes by the ...
  • Arshak, Khalil; Moore, Edward G.; Cunniffe, Colm; Cavanagh, Leon M.; Harris, John A.; Clifford, S.A. (IEEE Computer SocietyMIEL 2004. 24th International Conference on Microelectronics, 2004)
    The effect of ethanol vapour and temperature was investigated on gas sensors fabricated from poly (vinylacetate)\carbon black composites based around a predetermined percolation threshold. Samples with 8% carbon black ...
  • Arshak, Khalil; Korostynska, Olga; Harris, John A. (IEEE Computer Society, 2002)
    Thick films of Nickel oxide (NiO) were investigated for γ-radiation dosimetry purposes. Samples were fabricated using the thick film screen printing technique. Absorption spectra for NiO films were recorded and the values ...

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