The influence of the solvent nature on optical properties of poly[2-methoxy-5-3,7-
dimethyloctyloxy-1,4-phenylenevinylene] (MDMO-PPV)/Coumarine 500 (C500) have been
investigated. In addition, the amplified spontaneous emission (ASE) from MDMO-PPV and efficient
energy transfer between the MDMO-PPV and C500 has been verified. The MDMO-PPV was dissolved
in aromatic and nonaromatic solvents, while the solution blending method was employed to prepare
the MDMO-PPV:C500 hybrid. The quantum yield of the MDMO-PPV was found to increase with the

The effect of TiO2 nanoparticle (NP) content on the improvement of poly(9,90-di-noctylfluorenyl-
2,7-diyl) (PFO)/Fluorol 7GA organic light emitting diode (OLED) performance is
demonstrated here. The PFO/Fluorol 7GA blend with specific ratios of TiO2 NPs was prepared via
a solution blending method before being spin-coated onto an indium tin oxide (ITO) substrate to
act as an emissive layer in OLEDs. A thin aluminum layer as top electrode was deposited onto the
emissive layer using the electron beam chamber. Improvement electron injection from the cathode

In this work, the influence of TiO2 NPs content on optical and structural properties of amorphous SiO2 is
investigated. Amorphous SiO2/TiO2 thin
films were wet-mixed and then deposited onto glass substrate
by spin coating technique. The homogeneity distribution of anatase titania nanoparticles within
amorphous silica matrix was evidenced by the results of X-ray diffraction (XRD), Raman spectroscopy,
Fourier transform infrared spectroscopy (FT-IR), and
field emission scanning electron microscope (FESEM).