Open Access. Powered by Scholars. Published by Universities.®
- Keyword
-
- Ac Conductivity Dispersion systems Effective permittivity Experimental approaches Field emission scanning electron microscopes Filler concentration Fourier Frequency ranges FT-IR spectrum FTIR Imaginary parts Nanocomposites thin films PU prepolymer Temperature range Transmission electron micrograph ZnO ZnO nanoparticles Fourier transform infrared spectroscopy Maxwell equations Metal nanoparticles Mixing Nanocomposites Permittivity Sol-gel process Synthesis (chemical) Zinc oxide (1)
- Europium OLED Photoluminescence Picrate complex Thin film Crystalline complexes Current voltage Device performance Electrical property Emission materials Emissive materials Energy transfer process Europium complex Monodentates Narrow-band emission Optical and electrical properties Photoluminescence spectrum Semiconductor I-V curves Single layer devices Tetraethylene glycols Water molecule Energy transfer Glycols Ligands Negative ions Optical properties Organic light emitting diodes (OLED) Thin films Electric properties (1)
Articles 1 - 3 of 3
Full-Text Articles in Physics
Structural, Optical And Electrical Properties Of Europium Picrate Tetraethylene Glycol Complex As Emissive Material For Oled, Wan Haliza Abd Majid
Structural, Optical And Electrical Properties Of Europium Picrate Tetraethylene Glycol Complex As Emissive Material For Oled, Wan Haliza Abd Majid
Wan Haliza binti Abd Majid
A new europium complex [Eu(Pic) 2(H 2O)(EO4)](Pic) ·0.75H 2O was synthesized and used as the emission material for the single layer device structure of ITO/EO4EuPic/Al, using a spin-coating technique. Study on the optical properties of the [Eu(Pic) 2(H 2O)(EO4)](Pic)·0.75H 2O complex where EO4=tetraethylene glycol and Pic=picrate anion, had to be undertaken before being applicable to the study of an organic light emitting diode (OLED). The electrical property of an OLED using currentvoltage (IV) measurement was also studied. In complex, the Eu(III) ion was coordinated with the EO4 ligand as a pentadentate mode, one water molecule, and with two Pic anions …
Synthesis, Magnetic Properties And X-Ray Analysis Of Zn0.97x0.03o Nanoparticles (X = Mn, Ni, And Co) Using Scherrer And Size-Strain Plot Methods, Wan Haliza Abd Majid
Synthesis, Magnetic Properties And X-Ray Analysis Of Zn0.97x0.03o Nanoparticles (X = Mn, Ni, And Co) Using Scherrer And Size-Strain Plot Methods, Wan Haliza Abd Majid
Wan Haliza binti Abd Majid
Un-doped and doped ZnO nanoparticles (Zn0.97X0.03O-NPs, X = Mn, Co, and Ni) were synthesized from a metal acetate precursor and acetic acid by a modified sol gel combustion method. The compounds were synthesized at calcination temperatures of 650 degrees C for 1 h. The synthesized un-doped/doped ZnO-NPs were characterized by X-ray diffraction analysis (XRD) and high-magnification transmission electron microscopy (TEM). The XRD results revealed that the sample product was crystalline with a hexagonal wurtzite phase. The TEM showed ZnO-NPs nearly spherical shapes and a non-uniform shape for doped ZnO-NPs. The crystalline development in the ZnO-NPs was investigated by X-ray peak …
Theoretical And Experimental Approach On Dielectric Properties Of Zno Nanoparticles And Polyurethane/Zno Nanocomposites, Wan Haliza Binti Abd Majid
Theoretical And Experimental Approach On Dielectric Properties Of Zno Nanoparticles And Polyurethane/Zno Nanocomposites, Wan Haliza Binti Abd Majid
Wan Haliza binti Abd Majid
ZnO nanoparticles (ZnO-NPs) were synthesized by a new, simple sol-gel method in gelatin media (particle size of ZnO ≈ 30 to 60 nm). Polyurethane/ZnO nanocomposites thin films (PU/ZnO-NPs) were prepared by mixing the ZnO-NPs into PU prepolymer. The nanocomposites were structurally characterized using Fourier transmission infrared (FTIR) spectroscopy. The interaction between ZnO-NPs and PU matrix is studied by analyzing the differences in C=O region and N-H region of FTIR spectra. The morphology of ZnO and PU/ZnO nanocomposites were assessed using transmission electron micrograph, TEM, and field emission scanning electron microscope, FESEM, respectively. The dielectric properties of ZnO-NPs were attributed to …