Metamorphic Two-Junction Photovoltaic Devices with Removable Graded Buffers

Kevin Schulte (Inventor), Myles Steiner (Inventor), Daniel Friedman (Inventor), Ryan France (Inventor), Asegun Henry (Inventor)

Research output: Patent


The present disclosure relates to a method for manufacturing a device, where the device includes, in order, a metamorphic contact layer, a first metamorphic junction, a metamorphic tunnel junction, and a second metamorphic junction. To produce the device, the manufacturing includes, in order, a first depositing of a buffer layer onto a substrate, a second depositing of the metamorphic contact layer, a third depositing of the first metamorphic junction, a fourth depositing of the metamorphic tunnel junction, a fifth depositing of the second metamorphic junction, and the removing of the buffer layer and the substrate.
Original languageAmerican English
Patent number11,764,326 B2
Filing date19/09/23
StatePublished - 2023

NREL Publication Number

  • NREL/PT-5900-87577


  • first metamorphic junction
  • metamorphic contact layer
  • metamorphic tunnel junction
  • second metamorphic junction


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