Synthesis, Characterization, DFT Studies, and Photodiode Application of Azo-azomethine-Based Ligand and Its Transition-Metal Complexes


Tombak A., İmer A. G., Syan R. H. B., Gülcan M., Gümüş S., OCAK Y. S.

JOURNAL OF ELECTRONIC MATERIALS, vol.47, no.12, pp.7240-7250, 2018 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 47 Issue: 12
  • Publication Date: 2018
  • Doi Number: 10.1007/s11664-018-6657-z
  • Journal Name: JOURNAL OF ELECTRONIC MATERIALS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.7240-7250
  • Keywords: Azo-azomethine, transition-metal complex, DFT study, photodiode, SENSITIZED SOLAR-CELLS, PHOTOELECTRICAL CHARACTERIZATION, ELECTRICAL CHARACTERISTICS, SCHOTTKY DIODE, SI, PARAMETERS, DYE, ANTIOXIDANT, RESISTANCE, ALUMINUM
  • Van Yüzüncü Yıl University Affiliated: Yes

Abstract

An azo-azomethine-based ligand (H2L) and its transition-metal complexes were prepared, and the electronic structure of the synthesized compounds obtained computationally using density functional theory at B3LYP/6-31G (d,p) level. Furthermore, organic-inorganic heterojunctions were fabricated by forming thin films of complexes of H2L and Co(II), Ni(II), and Pd(II) metal on n-Si substrate. The fundamental electrical parameters of the rectifying heterojunctions were identified based on current-voltage data obtained in the dark at room temperature. The photosensing properties of the devices were investigated under illumination at various intensities from 40 mW/cm(2) to 100 mW/cm(2). The results showed that the photoelectrical characteristics of the devices could be modified by the thin film of metal complex, with the best photosensing properties being obtained for the heterojunction based on compound 1.