I-III-VI2 Photovoltaic Absorber Layers
The invention provides a film having a composition AgWCu1-WInrGaxKySe2(I-Z)Q2Z; wherein K is Al or Tl or a combination of these; Q is S or Te or a combination of these; w is in a range from 0.01 to 0.75; x is in a range from 0.1 to 0.8; and r, y and z are each independently in a range from 0 to 1, provided that r+x+y= l. Methods of making the film can include processing temperatures not exceeding 500 DEG C.
WO 2,009,046,178 [MORE INFO
HANKET GREGORY M [US]; SHAFARMAN WILLIAM N [US]
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