Solvents such as {HEAD ~ fluorosulfonic acid} may also serve to generate {TAIL ~ the dopant} 
Solvents such as { HEAD ~ fluorosulfonic acid } may also serve to generate { TAIL ~ the dopant }
OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL