Journal of Chemical Sciences | |
Copper(II) Schiff base complexes and their mixed thin layers with ZnO nanoparticles | |
MAGDALENA BARWIOLEK1  EDWARD SZÅYK1  ROBERT SZCZĘSNY1  | |
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关键词: Thin layer; ZnO nanoparticles; copper complexes; AFM; SEM; fluorescence.; | |
DOI : | |
来源: Indian Academy of Sciences | |
【 摘 要 】
Cu(II) complexes with Schiff bases derived from ethylenediamine (en) and 2-pyridinecarboxaldehyde (pyca), 2,5-dimethoxybenzaldehyde (dmbaH) or 4-imidazolecarboxaldehyde (4Him) were obtained and studied by elemental analysis, UV-VIS and IR spectra. Zinc oxide was synthesized using a simple homogeneous precipitation method with zinc acetate as a starting material. Thin layers of the studied Cu(II) complexes were deposited on Si(111) or ZnO/Si(111) substrates by a spin coating method and characterized with a scanningelectron microscopy (SEM/EDS), atomic force microscopy (AFM) and fluorescence spectroscopy. For Cu(II) layers the most intensive fluorescence bands due to intra-ligand transitions were observed between 462 and 503 nm. The fluorescence intensity of thin layers was corelated to the rotation speed. In the case of the[Cu(II)(en(4Him)₂)Cl₂](2a)/ZnO/Si and [Cu(en(dmbaH)₂)Cl₂](3a)/ZnO/Si layers the quenching of the emission band from ZnO at 440 nm (λex = 330 nm) associated with various intrinsic or extrinsic lattice defects was noted.
【 授权许可】
Unknown
【 预 览 】
Files | Size | Format | View |
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RO201912040509301ZK.pdf | 323KB | download |