29632
The OTMS - functionalized Au / SiO2 core / shell nanorods and nanospheres were then incorporated into the active layers of two OPV polymer systems : a poly ( 3 - hexylthiophene ) : [ 6 , 6 ] - phenyl - C61 - butyric acid methyl ester ( P3HT : PCB60M ) OPV device and a poly [ 2 , 6 - 4 , 8 - di ( 5 - ethylhexylthienyl ) benzo [ 1 , 2 - b ; 3 , 4 - b ] dithiophene - alt - 5 - dibutyloctyl - 3 , 6 - bis ( 5 - bromothiophen - 2 - yl ) pyrrolo [ 3 , 4 - c ] pyrrole - 1 , 4 - dione ] ( PBDTT - DPP : PC60BM ) OPV device .
 Chemical: OTMS; Chemical: Au; Chemical: SiO2; Chemical: poly ( 3 - hexylthiophene ); Chemical: [ 6 , 6 ] - phenyl - C61 - butyric acid methyl ester; Chemical: P3HT; Chemical: PCB60M; Chemical: poly [ 2 , 6 - 4 , 8 - di ( 5 - ethylhexylthienyl ) benzo [ 1 , 2 - b ; 3 , 4 - b ] dithiophene - alt - 5 - dibutyloctyl - 3 , 6 - bis ( 5 - bromothiophen - 2 - yl ) pyrrolo [ 3 , 4 - c ] pyrrole - 1 , 4 - dione ]; Chemical: PBDTT - DPP; Chemical: PC60BM
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: OTMS; Chemical: Au; Chemical: SiO2; Chemical: poly ( 3 - hexylthiophene ); Chemical: [ 6 , 6 ] - phenyl - C61 - butyric acid methyl ester; Chemical: P3HT; Chemical: PCB60M; Chemical: poly [ 2 , 6 - 4 , 8 - di ( 5 - ethylhexylthienyl ) benzo [ 1 , 2 - b ; 3 , 4 - b ] dithiophene - alt - 5 - dibutyloctyl - 3 , 6 - bis ( 5 - bromothiophen - 2 - yl ) pyrrolo [ 3 , 4 - c ] pyrrole - 1 , 4 - dione ]; Chemical: PBDTT - DPP; Chemical: PC60BM