Methods of Forming Interdigitated Back Contact Solar Cells

David Young (Inventor), Myles Steiner (Inventor), John Simon (Inventor)

Research output: Patent

Abstract

Methods for forming interdigitated back contact solar cells from III-V materials are provided. According to an aspect of the invention, a method includes depositing a patterned Zn layer to cover first areas of an n-type emitter region, wherein the emitter region comprises a III-V material, and forming a passivated back contact region by counter-doping the first areas of the emitter region by diffusing Zn from the pat­terned Zn layer into the first areas of the emitter region, such that the first areas of the emitter region become p-type.
Original languageAmerican English
Patent number10,749,052 B2
Filing date18/08/20
StatePublished - 2020

NREL Publication Number

  • NREL/PT-5900-77720

Keywords

  • emitter
  • n-type
  • p-type
  • passivated back
  • solar cells
  • Zn layer

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