Comparison Studies of Dielectric and AC Conduction of PbPc and CuPc Thin Films

Research Area: Volume 1 Issue 4, July 2012 Year: 2012
Type of Publication: Article Keywords: Phthalocyanine, Dielectric, Permitivity, Activation energy, MSM structure
Authors:
  • S. Sivamalar
  • J. Shanthi
  • Pon Kalugasalam
Journal: IJEIR Volume: 1
Number: 4 Pages: 360-365
Month: July
ISSN: 2277-5668
Abstract:
The thin film of Lead Phthalocyanine (PbPc) and Copper Phthalocyanine (CuPc) on glass are prepared by Vacuum deposition method. Deposition of PbPc and CuPc on pre-cleaned glass substrates under the pressure of 10-6 Torr are achieved by slowly varying current of 20 Volt. The rate of evaporation is properly controlled and maintained constant during all the evaporations. The thicknesses of the films are 150 nm, 300 nm and 450 nm on glass substrate. Dielectric and AC conduction studies of Lead Phthalocyanine and Cupper Phthalocyanine thin films have been studied. The variations of capacitance with frequency at different, permittivity with temperature, capacitance with temperature and ac conductance with frequency at different temperatures of PbPc and CuPc have been studied. The activation energies have been determined from the slope of 1000/T vs. log Gp curves at different frequencies (where Gp= -Eg/RT).

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