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