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Journal of Chemistry
Volume 2017, Article ID 9715069, 9 pages
Research Article

Synthesis of Peripherally Tetrasubstituted Phthalocyanines and Their Applications in Schottky Barrier Diodes

1Faculty of Arts and Science, Department of Chemistry, Yildiz Technical University, Esenler, 34210 Istanbul, Turkey
2Faculty of Chemical and Metallurgical Engineering, Department of Metallurgical and Materials Engineering, Yildiz Technical University, Esenler, 34210 Istanbul, Turkey
3Faculty of Arts and Science, Department of Physics, Yildiz Technical University, Esenler, 34210 Istanbul, Turkey
4Department of Occupational Health and Safety, Esenyurt University, Esenyurt, 34510 Istanbul, Turkey

Correspondence should be addressed to Semih Gorduk; moc.liamtoh@kdrg_himes and Ulvi Avciata; moc.liamg@ataicvau

Received 28 September 2017; Accepted 1 November 2017; Published 6 December 2017

Academic Editor: Maria F. Carvalho

Copyright © 2017 Semih Gorduk et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


New metal-free and metallophthalocyanine compounds (Zn, Co, Ni, and Cu) were synthesized using 2-hydroxymethyl-1,4-benzodioxan and 4-nitrophthalonitrile compounds. All newly synthesized compounds were characterized by elemental analysis, FT-IR, UV-Vis, 1H-NMR, MALDI-TOF MS, and GC-MS techniques. The applications of synthesized compounds in Schottky barrier diodes were investigated. Ag/Pc/p–Si structures were fabricated and charge transport mechanism in these devices was investigated using dc technique. It was observed from the analysis of the experimental results that the charge transport can be described by Ohmic conduction at low values of the reverse bias. On the other hand, the voltage dependence of the measured current for high values of the applied reverse bias indicated that space charge limited conduction is the dominant mechanism responsible for dc conduction. From the observed voltage dependence of the current density under forward bias conditions, it has been concluded that the charge transport is dominated by Poole-Frenkel emission.