Multiple-dyes sensitized solar cells and a method for preparing the same
OwnerNam-Gyu PARK, Kyung-Kon KIM +1inventors
InventorsNam-Gyu PARK, Kyung-Kon KIM, Kyung-Tae LEE
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Abstract
Provided are a dye-sensitized solar cell and a method for preparing the same. A dye-sensitized solar cell may include a photoelectrode comprising at least two kinds of dye layers having different wavelengths on a transparent conductive substrate, and a counter electrode comprising a platinum (Pt) layer on a transparent conductive substrate. The counter electrode may be arranged opposite to the photoelectrode and an electrolyte may be filled between the photoelectrode and the counter electrode.
Claims19
A dye-sensitized solar cell comprising:
- a photoelectrode comprising at least two kinds of dye layers having different wavelengths on a transparent conductive substrate;
- a counter electrode comprising a platinum (Pt) layer on a transparent conductive substrate, arranged opposite to the photoelectrode;
- and
- an electrolyte filled between the photoelectrode and the counter electrode.
A method for preparing a dye-sensitized solar cell, the method comprising:
- forming a metal oxide nanoparticle layer on a transparent conductive substrate having a blocking layer formed thereon, and absorbing a first dye to the metal oxide nanoparticle layer;
- forming a polymer material in the metal oxide nanoparticle layer to which the first dye is absorbed;
- desorbing dyes on top of the substrate having the polymer material formed thereon using a basic desorption solution;
- reabsorbing a second dye on the desorbed part;
- removing the polymer material after absorption of the second dye to prepare a photoelectrode having at least two kinds of dye layers having different wavelengths;
- forming a platinum (Pt) layer on a transparent conductive substrate to prepare a counter electrode;
- and
- oppositely arranging the photoelectrode and the counter electrode, and filling an electrolyte therebetween.
Dependencies are inferred from the claim text.