Solar cell dyes for copper redox based dye sensitized solar cells and combinations thereof

Abstract

The present application discloses compounds and compositions, useful in the manufacture of dye-sensitized solar cells and other similar technology.

1 . A compound of formula I: 
       
         
           
           
               
               
           
         
         wherein 
         each R 1  is independently selected from the group consisting of substituted or unsubstituted linear or branched C 1 -C 10  alkyl, substituted or unsubstituted phenyl, substituted or unsubstituted C 6 -C 12  aryl (including fused, bicyclic and tricyclic aryl), substituted or unsubstituted C 4 -C 12  heteroaryl (including fused, bicyclic and tricyclic heteroaryl), substituted or unsubstituted C 5 -C 10  cycloalkyl, and substituted or unsubstituted C 5 -C 10  heterocycloalkyl; 
         —Ar— is a pi-bridge; 
         R 2  and R 3  are independently selected from the group consisting of H, —CN, —COOH, —X, substituted or unsubstituted linear or branched C 1 -C 10  alkyl, —COOR, CONHR, CON(H)OR, —SO 3 R, —SO 2 R—OSO 3 R, —PO 3 HR, and —OPO 3 HR; 
         X is halogen; and 
         R is substituted or unsubstituted linear or branched C 1 -C 10  alkyl. 
       
     
     
         2 . (canceled) 
     
     
         3 . (canceled) 
     
     
         4 . (canceled) 
     
     
         5 . The compound of  claim 1  wherein each R 1  is independently selected from the group consisting of substituted or unsubstituted phenyl, naphthyl, fluorenyl, carbazolyl, biphenyl, thienyl, and pyrrolyl. 
     
     
         6 . The compound of  claim 1  wherein each R 1  is independently selected from the group consisting of substituted or unsubstituted linear or branched C 1 -C 10  alkyl. 
     
     
         7 . The compound of  claim 1  wherein each R 1  is independently selected from the group consisting of substituted or unsubstituted C 5 -C 10  cycloalkyl. 
     
     
         8 . A dye sensitized solar cell comprising a solar cell dye, wherein the solar cell dye is the compound of  claim 1 . 
     
     
         9 . A method of making a DSSC comprising the step of incorporating the solar cell dye of  claim 1  into the DSSC. 
     
     
         10 . (canceled) 
     
     
         11 . (canceled) 
     
     
         12 . (canceled) 
     
     
         13 . (canceled) 
     
     
         14 . (canceled) 
     
     
         15 . (canceled) 
     
     
         16 . (canceled) 
     
     
         17 . (canceled) 
     
     
         18 . (canceled) 
     
     
         19 . (canceled) 
     
     
         20 . (canceled) 
     
     
         21 . (canceled) 
     
     
         22 . (canceled) 
     
     
         23 . (canceled) 
     
     
         24 . (canceled) 
     
     
         25 . The compound of  claim 1 , wherein R 2  is H and R 3  is CN. 
     
     
         26 . The compound of  claim 1 , wherein the Pi-bridge is 
       
         
           
           
               
               
           
         
       
     
     
         27 . The compound of  claim 1 , wherein R 1  is selected from 
       
         
           
           
               
               
           
         
       
     
     
         28 . The compound of  claim 25 , wherein R 1  is 
       
         
           
           
               
               
           
         
       
     
     
         29 . The compound of  claim 28 , wherein the Pi-bridge is 
       
         
           
           
               
               
           
         
       
     
     
         30 . The compound of  claim 25 , wherein R 1  is 
       
         
           
           
               
               
           
         
       
     
     
         31 . The compound of  claim 30 , wherein the Pi-bridge is