TECHNOLOGY FOCUS - INORGANIC CHEMISTRY - Preferred Components: The semiconductor-oxide comprises titanium dioxide, zinc oxide, tin oxide and/or niobium pentoxide. An average secondary particle size of the semiconductor oxide is less than or equal to 1 mu m. The viscosity of the total solution is of 1-30 centipoises and the surface tension of the total solution is of 20-70 dynes/cm. The semiconductor oxide is used in the form of solutions and the semiconductor oxide (0.5-90 parts by wt.) is added relative to 100 parts by wt. of the total composition. The first- and second conductive substrates are planar or curved. The thickness of the semiconductor oxide layer is greater than or equal to 1 mu m. Preferred Composition: The composition additionally comprises a first agent comprising a silane binding agent (0.01-50 parts by wt., based on 100 parts by wt. of the total composition) and/or a chelating agent. Preferred Method: The total composition is stirred at 120 degrees C for 0.1-12 hours. A multi-laminated structure comprising semiconductor oxide layer is formed by alternative depositing of two or more semiconductor oxide inks on conductive substrates.    TECHNOLOGY FOCUS - INSTRUMENTATION AND TESTING - Preferred Method: The total composition is dispersed by a ball mill, a bead mill or an ultrasonic homogenizer.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Components: The solvent comprises water, methanol, ethanol, n-propyl alcohol, isopropyl alcohol, normal butanol, isobutanol, hexanol, ethylene glycol, glycerol, 2-methoxyethanol, 2-butoxyethanol, 2-ethoxyethanol, nitromethane, ethyl acetate, dimethylformamide, methyl ethyl ketone, N-Methyol-2-pyrrolidone, 2-pyrrolidone, N-vinyl-2-pyrrolidone, dimethyl sulfoxide, n-butyrolactone, gamma -butyrolactone, alpha -terpineol, xylene, chloroform, toluene, hexane, cyclic hexane, tetrahydrofuran and/or acetone. Preferred Composition: The composition additionally comprises a second agent comprising ethylene oxide-based mixtures, commercially available Pluronic series from BASF company, commercially available Disperbyk series from BYK-company, methyl- beta -cyclodextrin, cetyltrimethylammonium bromide, sodium dodecyl sulfate, polystyrene sulfonate, poly(sodium 4-stylensulfonate), dodecylbenzenesulfonate, acetylacetone, cellulose-based mixtures and/or acrylate-based mixtures (0.5-300 wt.% relative to the proportion of the semiconductor-oxide).    TECHNOLOGY FOCUS - POLYMERS - Preferred Composition: The composition additionally comprises a viscosity-controlling agent comprising alginic acid, gum arabic, polyvinyl alcohol, curdlan, gelatin, guar gum, glucomannan, locust bean gum, pectin, tamarind gum, xanthan, polyvinylpyrrolidone, ethyl cellulose and methylcellulose, preferably alginic acid, gum arabic, polyvinyl alcohol, curdlan, gelatin, guar gum, glucomannan, locust bean gum, pectin, and tamarind gum. EXAMPLE - Titanium isopropoxide, water, ethanol and nitric acid were mixed, stirred for four hours and then dried in a vacuum oven at 60 degrees C for 12 hours. The resulting material was washed several times with water and ethanol by using a filter until the pH was neutral and dried again in vacuum oven at 60 degrees C for 24 hours. Thus obtained titanium dioxide nanoparticles (10 wt.%) were added to ethanol and additionally a dispersing agent was added, e.g. dispersion BYK-180 (RTM: Wetting and dispersing additive) (2 wt.% of the titanium dioxide nanoparticles), followed by circulation and dispersion by a wet bead mill for one hour. Then methyl cellulose solution (1 wt.%) was added to titanium dioxide (5 wt.%) and dispersed for 20 minutes using a horn-like ultrasonic homogenizer to obtain titanium dioxide ink composition that was applied on the curved conductive layer to form photoelectric conversion element.