Abstract
Porphyrin compounds are novel nonlinear materials that are being used in a wide range of optoelectronic applications. In this article, a film of 2,7,12,17-tetra-tert-butyl-5,10,15,20-tetraaza-21H,23H-porphine (TTBTP) was produced by a thermal evaporation technique. IR analysis confirmed that this method is an excellent method to obtain unassociated TTBTP films. The surface topography of the TTBTP was characterized by large spherical granules with a mean diameter of 50 nm. Also, using X-ray diffraction analysis, the size of the crystallite was estimated to be 18.20 nm. Moreover, optical absorption analysis showed that TTBTP films have indirect transition energy with two energy gaps of 1.80 ± 0.03 and 2.95 ± 0.03 eV. The electrical analysis showed that TTBTP film is a semiconductor material with two conduction mechanisms. These two mechanisms are extrinsic and intrinsic conductions with activation energies of 0.057 ± 0.006 eV and 0.556 ± 0.060 eV, respectively.
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