5450
The technique is applicable on any arbitrary substrate that needs to be covered with a graphene film and provides a viable route to large - area patterning of graphene for device applications .
 Chemical: graphene; Chemical: graphene
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: graphene; Chemical: graphene