In {HEAD ~ a process} for producing {TAIL ~ an electro electricity generating device}, there has been known that a reflection layer of, e.g., metal is formed on the back side of an semiconductor layer in order to improve a light collection efficiency of the photo electricity generating device on a long wavelength 
for producing
In { HEAD ~ a process } for producing { TAIL ~ an electro electricity generating device } , there has been known that a reflection layer of , e.g. , metal is formed on the back side of an semiconductor layer in order to improve a light collection efficiency of the photo electricity generating device on a long wavelength
OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH