Superstrate Sub-Cell Voltage-Matched Multijunction Solar Cells

Angelo Mascarenhas (Inventor), Kirstin Alberi (Inventor)

Research output: Patent


Voltage-matched thin film multijunction solar cell and methods of producing cells having upper CdTe pn junction layers formed on a transparent substrate which in the completed device is operatively positioned in a superstate configuration. The solar cell also includes a lower pn junction formed independently of the CdTe pn junction and an insulating layer between CdTe and lower pn junctions. The voltage-matched thin film multijunction solar cells further include a parallel connection between the CdTe pn junction and lower pn junctions to form a two-terminal photonic device. Methods of fabricating devices from independently produced upper CdTe junction layers and lower junction layers are also disclosed.
Original languageAmerican English
Patent number9,287,431
Filing date15/03/16
StatePublished - 2016

NREL Publication Number

  • NREL/PT-5K00-66454


  • thin film multijunction solar cells
  • transparent substrates


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