Assertion: solar cell's film | /r/MadeOf | amorphous silicon
Facets:
Source sentences:
text: The power-generating film is made from amorphous silicon, fastened to a thin, flexible, and relatively inexpensive plastic backing (the "substrate").
text: The power-generating film is made from amorphous silicon, fastened to a thin, flexible, and relatively inexpensive plastic backing (the "substrate").