Dye-sensitized solar cell

Abstract

The present invention provides a dye-sensitized solar cell which enhances an area of a photo electrode by arranging metal wires on a surface of a transparent substrate or a transparent conductive layer without degrading a transparency of the solar cell, allowing the metal wires to act as a collector electrode exclusively or together with a metal electrode.

1 - 5 . (canceled) 
     
     
         6 . A dye-sensitized solar cell comprising:
 a working electrode including:
 a transparent conductive layer coated on a surface of a transparent substrate, 
 an oxide semiconductor thick film absorbed with a dye that absorbs light and emit electrons, and; and 
   a counter electrode including:
 a transparent conductive layer coated on a surface of a transparent substrate, 
 a plurality of metal electrodes connected to the collector electrode, and 
 a plurality of catalytic electrodes, 
   wherein metal wires are arranged between inner surfaces of the transparent substrates of the working electrode and outer surfaces of the transparent conductive layers of the working electrode, without metal electrodes being arranged in the working electrode, the metal wires acting as the plurality of metal electrodes.   
     
     
         7 . (canceled) 
     
     
         8 . The dye-sensitized solar cell of  claim 6 , wherein the metal wires form one structure selected from a structure where the metal wires are linearly arranged at equal intervals longitudinally or transversely, a structure where the metal wires are linearly arranged at equal intervals obliquely, a mesh type structure where the metal wires cross longitudinally and transversely, a mesh type structure where the metal wires are arranged linearly in a longitudinal direction and arranged obliquely in a transverse direction, and a mesh type structure where the metal wires cross each other obliquely. 
     
     
         9 . The dye-sensitized solar cell of  claim 6 , wherein each of the metal wires has a width of 0.001 to 2000 micrometers and a height of 0.001 to 20 micrometers. 
     
     
         10 . The dye-sensitized solar cell of  claim 6 , wherein each of the metal wires has a width of 0.001 to 1000 micrometers and a height of 0.001 to 10 micrometers. 
     
     
         11 . The dye-sensitized solar cell of  claim 6 , wherein the metal wires are formed by coating a liquid containing a metal, a gas, or a solid on a surface portion or portions of the transparent substrate or the transparent conductive layer through one selected screen printing, inkjet printing, gravure coating, bar coating, spraying, and sputtering, or by directly forming shapes of metal wires on the surface portion of portions. 
     
     
         12 . A dye-sensitized solar cell comprising:
 a working electrode including:
 a transparent conductive layer coated on a surface of a transparent substrate, 
 an oxide semiconductor thick film absorbed with a dye that absorbs light and emit electrons, and 
 a plurality of metal electrodes connected to a collector electrode; and 
   a counter electrode including:
 a transparent conductive layer coated on a surface of a transparent substrate, and 
 a plurality of catalytic electrodes, 
   wherein metal wires are arranged in inner surfaces of the transparent substrates of the counter electrode without metal electrodes being arranged in the counter electrode, the metal wires acting as the plurality of metal electrodes.   wherein the metal wires form one structure selected from a structure where the metal wires are linearly arranged at equal intervals longitudinally or transversely, a structure where the metal wires are linearly arranged at equal intervals obliquely, a mesh type structure where the metal wires cross longitudinally and transversely, a mesh type structure where the metal wires are arranged linearly in a longitudinal direction and arranged obliquely in a transverse direction, and a mesh type structure where the metal wires cross each other obliquely.   
     
     
         13 . A dye-sensitized solar cell comprising:
 a working electrode including:
 a transparent conductive layer coated on a surface of a transparent substrate, 
 an oxide semiconductor thick film absorbed with a dye that absorbs light and emit electrons, and 
   a counter electrode including:
 a transparent conductive layer coated on a surface of a transparent substrate, and 
 a plurality of catalytic electrodes, 
   wherein metal wires are arranged in inner surfaces of the transparent substrates of the working electrode and in inner surfaces of the transparent substrates of the counter electrode, without metal electrodes being arranged in the working electrode and the counter electrode, the metal wires acting as the metal electrodes, and   wherein the metal wires form one structure selected from a structure where the metal wires are linearly arranged at equal intervals longitudinally or transversely, a structure where the metal wires are linearly arranged at equal intervals obliquely, a mesh type structure where the metal wires cross longitudinally and transversely, a mesh type structure where the metal wires are arranged linearly in a longitudinal direction and arranged obliquely in a transverse direction, and a mesh type structure where the metal wires cross each other obliquely.