Due to movement of electrons, water in {HEAD ~ contact} with {TAIL ~ the semiconductor electrode} is decomposed, so that oxygen is produced 
with
Due to movement of electrons , water in { HEAD ~ contact } with { TAIL ~ the semiconductor electrode } is decomposed , so that oxygen is produced
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH