Abstract:
PURPOSE: A titanium dioxide nanopowder for high efficiency longevity dye-sensitized solar cell and a manufacturing method thereof are provided to increase photoelectric conversion efficiency through vapor synthesis and post-annealing. CONSTITUTION: A titanium dioxide nanopowder for high efficiency longevity dye-sensitized solar cell and a manufacturing method thereof comprises the following steps: forming titanium nanopowder by using titanium alkoxide precursor; and post-annealing the titania nanopowder to form anatase type titanium nanopowder having bipyramid structure. The titanium dioxide precursor is one or more selected from titanium tetraisopropoxide, titanium methoxide, titanium ethoxide, titanium butoxide, titanium tertiary butoxide and titanium ethylhexoxide. The post-annealing is processed at 400-600 deg. Celsius for 0.5-10 hours.
Abstract:
PURPOSE: A titanium dioxide nano-powder for a dye-sensitized solar cell photoelectrode and a manufacturing method thereof are provided to enable dye molecules to be absorbed rapidly and photoelectric conversion to have high efficiency. CONSTITUTION: A titanium dioxide nano-powder for a dye-sensitized solar cell photoelectrode is titania nanopowder for anatase type dye-sensitized solar cell photoelectrode having a dipyramid structure. A specific surface area of the nano-powder is 80m/g or greater. An adhesion rate of paint to the nano-powder is more than 80% or greater within 5 minutes after contact. A manufacturing method of the titania nano-powder for the dye-sensitized solar cell photoelectrode comprises next steps: forming titania nano-powder with a vapor synthesis method by using precursors of titanium alkoxide; post-thermal treating the titania nanopowder; and forming anatase type titania nanopowder having an angular shape.