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Presents information on a study which examined the conductivity in doped and undoped solid films of metallophthalocyanines. Methodology of the study; Results; Conclusions.

Develops thin-film transistors using nickel phthalocyanine as active component. Characteristics of drain current versus drain voltage; Thickness of phthalocyanine; Parameters obtained with several phthalocyanine thicknesses on oxidized wafers.

The Green’s function for a Klein–Gordon particle under the action of vector plus scalar deformed Hulthén and Woods–Saxon potentials is evaluated by exact path integration. Explicit path integration leads to the Green’s function for different shapes of the potentials. From the singularities of the latter Green’s function, the bound states are extracted. For q≥1 and (1/α)ln q

A rigorous evaluation of the path integral for Green’s function associated with a four-parameter potential for a diatomic molecule is presented. A closed form of Green’s function is obtained for different shapes of this potential. When the deformation parameter λ is λ<0 or 0<λ<1, it is found that the quantization conditions are transcendental equations that require a numerical solution. For λ>=1 and r∈](1/η)ln λ,∞[, the energy spectrum and the normalized wave functions of the bound states are derived. Particular cases of this potential which appear in the literature are also briefly discussed. [ABSTRACT FROM AUTHOR]