Glass composition for dye-sensitized solar cell and material for dye-sensitized solar cell

Abstract

A dye-sensitized solar cell having high long-term reliability is provided by inventing a glass composition, which is hardly eroded by an iodine electrolyte solution and has a low-melting point property, and a material using the glass composition. The glass composition for a dye-sensitized solar cell of the present invention is characterized by including as a glass composition, in terms of mass %, to 70% of V 2 O 5 and 10 to 50% of P 2 O 5 .

1 . A glass composition for a dye-sensitized solar cell, comprising as a glass composition, in terms of mass %, 20 to 70% of V 2 O 5  and 10 to 50% of P 2 O 5 . 
   
   
       2 . A glass composition for a dye-sensitized solar cell according to  claim 1 , further comprising as a glass composition, in terms of mass %, 10 to 55% of ZnO+SrO+BaO+CuO. 
   
   
       3 . A glass composition for a dye-sensitized solar cell according to  claim 2 , comprising, in terms of mass %, 0 to 30% of ZnO, 0 to 20% of SrO, 0 to 45% of BaO, and 0 to 15% of CuO. 
   
   
       4 . A glass composition for a dye-sensitized solar cell according to  claim 1 , which has a mass reduction of 0.1 mg/cm 2  or less after being immersed in an iodine electrolyte solution at 25° C. for 2 weeks. 
   
   
       5 . A glass composition for a dye-sensitized solar cell according to  claim 1 , which has a thermal expansion coefficient of 65 to 120×10 −7 /° C. 
   
   
       6 . A material for a dye-sensitized solar cell, comprising:
 50 to 100 vol % of a glass powder formed of the glass composition for a dye-sensitized solar cell according to any one of  claims 1  to  5 ; and   to  50  vol % of a refractory filler powder.   
   
   
       7 . A material for a dye-sensitized solar cell according to  claim 6 , which has a softening point of 550° C. or lower. 
   
   
       8 . A material for a dye-sensitized solar cell according to  claim 6 , which is used for sealing. 
   
   
       9 . A material for a dye-sensitized solar cell according to  claim 8 , which is used for sealing by a laser beam. 
   
   
       10 . A material for a dye-sensitized solar cell according to  claim 6 , which is used for overcoating a collector electrode.