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US 9,871,155 B2Granted
Layer system for thin-film solar cells having an NaxIn1SyClz buffer layer
AssigneeBengbu Design & Research Institute for Glass Industry
InventorsThomas Happ, Stefan Jost, Jörg Palm, Stephan Pohlner, Thomas Dalibor, Roland Dietmüller
Life of this patent
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Abstract
The present invention relates to a layer system (1) for thin-film solar cells with an absorber layer (4) that contains a chalcogenide compound semiconductor and a buffer layer (5) that is arranged on the absorber layer (4), wherein the buffer layer (5) contains NaxIn1SyClz with 0.05≦x<0.2 or 0.2<x≦0.5, 1≦y≦2, and 0.6≦x/z ≦1.4.
Claims19
Layer system for thin-film solar cells, comprising:
- an absorber layer that contains a chalcogenide compound semiconductor,
- a buffer layer that is arranged on the absorber layer, wherein the buffer layer contains NaxIn1SyClz with
- 0.05≦x<0.2 or 0.2<x≦0.5,
- 0.6≦x/z≦1.4, wherein 0.05<x<0.2 or 0.2<x≦0.5 and
- 1≦y≦2.
2 more elements
Method for producing a layer system for thin-film solar cells, wherein
- a) an absorber layer that contains a chalcogenide compound semiconductor is prepared and
- b) a buffer layer is arranged on the absorber layer,
- wherein the buffer layer contains NaxIn1SyClz with
- 0.05≦x<0.2 or 0.2<x≦0.5,
- 0.6≦x/z≦1.4, wherein 0.05<x<0.2 or 0.2<x≦0.5, and
- 1≦y≦2.
3 more elements
Dependencies are inferred from the claim text.