Synthesis and characterization of nano-PVP/EuL3 luminescent complex.

Nano-sized rare earth europium [Eu(III)]-benzoic acid [HL] luminescent complex powders have been synthesized in polyvinylpyrrolidone matrix by precipitation method. The chemical constitution of the complex has been demonstrated as PVP/EuL3 by a combination of elemental analysis, inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and fourier-transform infrared spectroscopy (FT-IR). X-ray diffraction analysis (XRD) and scanning electron microscopy (SEM) have shown that the complex is a new nanocrystal whose structure is totally different from the ligand.

Synthesis and characterization of PVP/TbL(phen)0.5 x 7H2O nanorods.

The luminescent complex terbium (III)-trimesic acid (TMA)-1,10-phenanthroline (phen) nanorod was synthesized in the polyvinylpyrrolidone (PVP) matrix by a co-precipitation method. The chemical formula of the synthesized complex was speculated to be PVP/TbL(phen)0.5 x 7H2O by inductively coupled plasma-atomic emission spectroscopy (ICP-AES), elemental analysis and Fourier-transform infrared spectroscopy (FTIR).

Preparation and characterization of ternary europium nanorod complexes with UV excitation of the characteristic red luminescence.

Rare-earth luminescent complex have been attracted increasing interest since they can emit fluorescence using near ultraviolet as excitation wavelength. Nanomaterials have potential applications in optical, electronic, magnetic fields due to their surface effects, volume effects, quantum size effects and macroscopic quantum tunnel effects. Combing the important properties of fluorescence and nanomaterial, the study of nanosized rare earth fluorescence complex is an interesting topic.

Preparation and research of nano-scale europium (III)-pyromellitic acid powder luminescent material.

The nanoscale luminescent complex of europium (III)-pyromellitic acid was synthesized successfully in the polyvinylpyrrolidone (PVP) matrix by a co-precipitation method. The chemical formula of the synthesized complex was speculated to be PVP/Eu4/3L x 3H2O by elemental analysis, inductively coupled plasma-atomic emission spectroscopy (ICP-AES) and Fourier-transform infrared spectroscopy (FT-IR). The X-ray diffraction (XRD) pattern of PVP/Eu4/3L x 3H2O indicated that it was a new crystalline complex since the diffraction angle, diffraction intensity, and distance of the crystal plane were all different from those of the ligand.