7534
Photoresponsivity of the prepared GO - Fc composite was investigated by fabricating a metal / GO - Fc / metal device .
 Chemical: GO - Fc; Chemical: GO - Fc
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: GO - Fc; Chemical: GO - Fc