In some examples, the light is effective to form the pattern on the graphene layer such that {HEAD ~ the pattern} can be formed on {TAIL ~ the photoresist layer} 
In some examples , the light is effective to form the pattern on the graphene layer such that { HEAD ~ the pattern } can be formed on { TAIL ~ the photoresist layer }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL