Back Contact Buffer Layer for Thin-film Solar Cells
A photovoltaic cell structure is disclosed that includes a buffer/passivation layer at a CdTe/Back contact interface. The buffer/passivation layer is formed from the same material that forms the n-type semiconductor active layer. In one embodiment, the buffer layer and the n-type semiconductor active layer are formed from cadmium sulfide (CdS). A method of forming a photovoltaic cell includes the step of forming the semiconductor active layers and the buffer/passivation layer within the same deposition chamber and using the same material source.
Patents:WO 2,011,049,933
Inventor(s):
COMPAAN ALVIN D [US]; PLOTNIKOV VICTOR V [US]
Type of Offer:
Sale
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