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Electrical and photoelectrical behaviour of heterojunctions based on novel oligomeric metal complexes |
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| Authors: | Metin Atlan Yusuf Selim Ocak Salih Pasa Hamdi Temel Ahmet Tombak Tahsin Kilicoğlu Kemal Akkilic Murat Aydemir |
| Affiliation: | 1. Department of Chemistry, Faculty of Education, Dicle University, Diyarbakir, Turkey;2. Department of Science, Faculty of Education, Dicle University, Diyarbakir, Turkey;3. Science and Technology Research Center, University of Dicle, Diyarbakir, Turkey;4. Department of Pharmaceutical Chemistry, Faculty of Pharmacy, Dicle University, Diyarbakir, Turkey;5. Department of Physics, Faculty of Art & Science, Batman University, Batman, Turkey;6. Department of Physics, Faculty of Education, Dicle University, Diyarbakir, Turkey;7. Department of Chemistry, Faculty of Science, Dicle University, Diyarbakir, Turkey |
| Abstract: | Naringenin‐based Schiff base ligands with 4‐aminobenzoic hydrazide were obtained as a unilateral form ( L1 ). The ligand was oligomerized by oxidative polycondensation reaction with NaOCl as an oxidant in an aqueous alkaline medium at 90 °C to form a functional oligomer ( L2 ), and its transition metal complexes such as those with Cu(II), Ni(II) and Zn(II) were prepared. The monomer and the oligomeric compounds were characterized using various techniques. Optical and electrical properties of the complexes were also investigated. All compounds showed indirect band gaps and they can be accepted as being in the semiconductor class. Organic–inorganic hybrid devices were obtained using n‐Si inorganic semiconductor and the complexes. The characteristic parameters of the devices were determined using current–voltage (I–V) and capacitance–voltage measurements in the dark. Photoelectrical properties of the devices were investigated using I–V measurements under a solar simulator with an AM1.5 global filter. Copyright © 2015 John Wiley & Sons, Ltd. |
| Keywords: | oligomer Schiff base oxidative polycondensation optical and electrical properties heterojunction photoelectrical properties |