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Although the excited state of the quinoidal thiophene dye is deactivated within several picoseconds even in solution , the DSSCs using the quinoidal thiophene dye showed incident photon to current conversion efficiency ( IPCE ) values of more than 90 % , demonstrating the fast and efficient electron injection from the excited dye to TiO ( 2 ) .
 Chemical: quinoidal thiophene; Chemical: quinoidal thiophene; Chemical: TiO ( 2 )
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: quinoidal thiophene; Chemical: quinoidal thiophene; Chemical: TiO ( 2 )