Electrical Properties of Poly-Copper Phthalocyanine

Abstract

Hall effect and electrical resistivity measurements as a function of temperature to ∼450°C have been carried out on a polymer of copper phthalocyanine. From the Hall effect data it is concluded that intrinsically the polymer of copper phthalocyanine is P type. Two states of this polymer have been determined, one has an activation energy of 0.26 ev and a carrier density ∼1016/cm3 (the carrier concentration varying with temperature), a second, a heat-treated polymer, also shows P type conductivity but the carrier density is ∼1018/cm3 and is constant in the range of temperature measured. The mobility in the heat-treated polymer is found to increase with increasing temperature. N type conductivity observed on the first structure is believed to be a consequence of impurities.

Effect of annealing temperature on optical and electrical properties of lead sulfide thin films

“…Heat treatments in air do not remove oxygen in thin films completely. It has been observed that the removal of oxygen causes a redistribution of traps and hence a drop in band gap and thermal activation energy [29]. Moharram et al [30] showed that the density of the localized states at the Fermi level increased by increasing annealing temperature in Ge20Te80 films that led to the reduction in band gap and activation energy.…”

Synthesis and structure of high-quality films of copper polyphthalocyanine – 2D conductive polymer

“…However, in order to access many promising applications of PPCs, it is desirable to obtain them in a form of thin film materials on any arbitrary wafer, in particular on dielectrics. The reported synthetic routes for PPCs are based on reaction of metals [8] or metal salts [7] with pyromellitic acid tetranitrile (PMTN) ( fig. 2).…”

Spectrophotometric and electrical measurements of phthalocyanine polymers

“…Other metal phthalocyanine polymers have been prepared by converting 1,2,4,5-tetracyanobenzene in bulk with metal powders or metal salts and in high boiling solvents [5][6][7] . Phthalocyanine polymers are of great interest because they are convenient models for the investigation of the effect of the polymeric state on the physico-chemical properties [8][9][10][11][12][13][14][15][16][17] as well as in connection with the increased catalytic activity of some polymeric compounds [18][19][20][21][22] as compared to monomers. These polymers are obtained from the reaction of a tetra-basic acid derivative, e. g. pyromellitic dianhydride, with an amination source, e. g. urea, and a vanadate or molybdate promoter in the absence or the presence of metal salts, e. g. metal chlorides.…”