25747
3D TiO2 photoanodes in dye - sensitized solar cells ( DSCs ) are fabricated by the soft lithographic technique for efficient light trapping .
 Chemical: TiO2
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: TiO2