A new strategy for enhancing the efficiency of TiO2 dye-sensitized solar cells (DSSCs) by doping foreign ion into TiO2 lattice via sol-gel process is reported. DSSCs are based on a semiconductor (i.e., TiO2), formed between a photo-sensitized anode and an electrolyte. In order to reach high conversion efficiency, it is important to increase the electron injection and optical absorption. One pro...

TiO2/TeO2 powders were obtained by an aqueous sol-gel method. Telluric acid (H6TeO6) and titanium butoxide used as precursors. The as-prepared gel was step-wisely heated in the temperature range 200–700 °C subsequently characterized XRD, IR, UV-Vis analysis SEM. Mixtures containing TiO2 (anatase), α-TeO2 (paratellurite), TiTe3O8 established XRD final products, depending on heating temperature. ...

polyimide/nickel oxide (polyimide/nio) nanocomposite was successfully synthesized by sol gel technique, using pyromellitic dianhydriede (pmda), 4,4-oxydianiline (oda) and n,n-dimethylacetamide (dmac) and 10 wt% nickel titanate nanopowders (nps). fourier transform infrared spectrometry (ftir), x-ray diffraction (xrd), scanning electron microscopy (sem), and vibrating sample magnetometer (vsm) we...

Nanocrystalline Eu(3+), Tb(3+) co-doped Lu(2)O(3) powders with a maximum size of 25.5 nm were prepared by the sol-gel process, using lutetium, europium and terbium nitrates as precursors, and ethanol as a solvent. Differential thermal analysis (DTA) and infrared spectroscopy (IR) were used to study the chemical changes during the xerogel annealing. After the sol evaporation at 100 °C, the forme...

Improved optical and mechanical properties are required for future infrared windows working in harsher thermal environments than today. Ameliorating the homogeneity of phase domain reducing size effective approaches enhancing transmittance hardness a nanocomposite. In this work, we reported that Gd2O3-MgO nanopowders were prepared by two different processes. The core–shell synthesized urea prec...