The method 1, wherein the Si forming solution is coated on {HEAD ~ the substrate} by sol gel coating, spin coating, spray coating or {TAIL ~ an inkjet method} 
The method 1 , wherein the Si forming solution is coated on { HEAD ~ the substrate } by sol gel coating , spin coating , spray coating or { TAIL ~ an inkjet method }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL