However, {HEAD ~ the sheet resistance} and optical transparency of {TAIL ~ the films} produced in this manner using casting or spin coating were not satisfactory 
However , { HEAD ~ the sheet resistance } and optical transparency of { TAIL ~ the films } produced in this manner using casting or spin coating were not satisfactory
OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH