Investigation of structural, optical and electrical properties of a new cobalt phthalocyanine thin films with potential applications in perchlorate sensor

Abstract : Optical, structural and electrical properties of new cobalt phthalocyanine derivatives (Co(II)Pc-AP) thin films have been investigated. The Raman spectroscopy study shows the different vibrations bands corresponding to the metallophthalocyanine. The cobalt-phthalocyanine derivative films exhibit absorption spectra with a resolved electronic structure in the UV-vis range and the energy gap was determined by the Tauc method. Electrical properties of the ITO/Co(II)Pc-AP/Al structure have been investigated by I-V characteristics and impedance spectroscopy measurements. The conduction is governed by space-charge-limited current (SCLC) mechanism. The impedance spectroscopy study showed a hopping transport process, which is a typical behavior of disordered materials. The electrical characteristics of the devices were modeled by a single parallel resistor and capacitor network in series with a resistance.
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Submitted on : Thursday, November 26, 2015 - 2:41:53 PM
Last modification on : Wednesday, April 3, 2019 - 1:30:45 AM

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Mohammed Braik, C. Dridi, A. Ali, M. Ben Ali, Mohammad Nooredeen Abbas, et al.. Investigation of structural, optical and electrical properties of a new cobalt phthalocyanine thin films with potential applications in perchlorate sensor. Synthetic Metals, Elsevier, 2015, 209, pp.135-142. 〈10.1016/j.synthmet.2015.07.011〉. 〈hal-01234227〉

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