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US 2016/0111563 A1Published application
Photon and carrier management design for nonplanar thin-film copper indium gallium diselenide photovoltaics
AssigneeCalifornia Institute of Technology
InventorsHarry A. ATWATER, Dennis CALLAHAN, Colton BUKOWSKY
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Abstract
Photovoltaic structures are disclosed. The structures can comprise randomly or periodically structured layers, a dielectric layer to reduce back diffusion of charge carriers, and a metallic layer to reflect photons back towards the absorbing semiconductor layers. This design can increase efficiency of photovoltaic structures. The structures can be fabricated by nanoimprint.
Claims17
A photovoltaic structure comprising:
- a metallic layer;
- a copper indium gallium diselenide (CIGS) layer on the metallic layer;
- a CdS layer on the CIGS layer, conformal to the CIGS layer;
- and
- an Al-doped ZnO layer on the CdS layer.
2 more elements
Dependencies are inferred from the claim text.