Monolithic integration of heterojunction solar cells
AssigneeInternational Business Machines Corporation
InventorsStephen W. Bedell, Bahman Hekmatshoartabari, Devendra K. Sadana, Ghavam G. Shahidi, Davood Shahrjerdi
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Abstract
A method for fabricating a device with integrated photovoltaic cells includes supporting a semiconductor substrate on a first handle substrate and doping the semiconductor substrate to form doped alternating regions with opposite conductivity. A doped layer is formed over a first side the semiconductor substrate. A conductive material is patterned over the doped layer to form conductive islands such that the conductive islands are aligned with the alternating regions to define a plurality of photovoltaic cells connected in series on a monolithic structure.
Claims13
A device with integrated photovoltaic cells, comprising:
- a semiconductor layer having alternating regions of higher and lower dopant concentration of a same dopant type across the semiconductor layer;
- at least one doped layer formed over a first side of the semiconductor layer;
- and
- a patterned conductive material formed over the least one doped layer forming conductive islands such that the conductive islands are aligned with the alternating regions to define a plurality of photovoltaic cells.
Dependencies are inferred from the claim text.