Dye-sensitized solar cell having nanostructure absorbing multi-wavelength, and a method for preparing the same
OwnerNam-Gyu PARK, Kyung-Kon KIM +1inventors
InventorsNam-Gyu PARK, Kyung-Kon KIM, Hyung-Jun KOO
Life of this patent
Estimating the term…
Abstract
A dye-sensitized solar cell absorbing a multi-wavelength, and a method of preparing the same are provided. In the dye-sensitized solar cell, a contacted interface structure of metal oxide nanoparticle layers of a photoelectrode and a counter electrode may be provided. The contacted interface structure may be formed by contacting the faces of the nanoparticle layers of the electrodes adsorbed by same or different dyes after forming photoabsorption layers comprising the nanoparticle layers respectively on the photoelectrode and the counter electrode.
Claims11
A dye-sensitized solar cell comprising:
- a photoelectrode comprising a metal oxide nanoparticle layer to which dyes are absorbed, formed on a transparent conductive substrate;
- a counter electrode comprising a platinum (Pt) layer and a metal oxide nanoparticle layer to which dyes are absorbed, formed on a transparent conductive substrate and arranged opposite to the photoelectrode;
- and
- an electrolyte provided between the photoelectrode and the counter electrode.
A method of preparing a dye-sensitized solar cell, the method comprising:
- (a) forming a metal oxide nanoparticle layer by coating a nanoparticle paste on a face of a transparent conductive substrate and heat-treating the same;
- (b) preparing a photoelectrode by adsorbing a dye to the metal oxide nanoparticle layer of (a);
- (c) forming a metal oxide nanoparticle layer by coating a nanoparticle paste on a transparent conductive substrate where a platinum layer is formed on and heat-treating the same;
- (d) preparing a counter electrode by adsorbing a dye of which the absorption wavelength range is same as or different from the dye of (b) to the metal oxide nanoparticle layer of (c);
- and
- (e) placing the metal oxide nanoparticle layers of the photoelectrode and the counter electrode to face each other so as to form a contacted interface of the nanoparticle layers and providing an electrolyte therein.
Dependencies are inferred from the claim text.