Effect of Titanium Dioxide Dopping on Charge Trapping in Polystyrene Films

  • JN Mutuku Department of Physics, Jomo Kenyatta University of Agriculture and Technology, P.O. Box 62000, Nairobi, KENYA
  • PK Karanja Department of Physics, Jomo Kenyatta University of Agriculture and Technology, P.O. Box 62000, Nairobi, KENYA

Abstract

The charge storage properties of corona charged pure and TiO2 doped polystyrene (PS) films have been studied. Thermally stimulated charge decay and open circuit thermally stimulated charges were measured. A half-value charge decay temperature T1/2 ∼ 140oC is optimum at 3 wt % TiO2 doping. This implies that charge trapping predominantly occurs at deep traps in 3 wt % TiO2 doping. X-ray diffraction scanning method was employed to obtain structural information.
Journal of Agriculture, Science and Technology Vol.3(1) 2001: 64-70
Published
2005-05-19
Section
Articles

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eISSN: 1561-7645