Modeling Three-Terminal III-V/Si Tandem Solar Cells

Research output: Contribution to conferencePaper


Three-terminal (3T) tandem cells fabricated by combining an interdigitated back contact (IBC) Si device with a wider bandgap top cell have the potential to provide a robust operating mechanism to efficiently capture the solar spectrum without the need to current match sub-cells or fabricate complicated metal interconnects between cells. Here we develop a two dimensional device physics model to study the behavior of IBC Si solar cells operated in a 3T configuration. We investigate how different cell designs impact device performance and discuss the analysis protocol used to understand and optimize power produced from a single junction, 3T device.
Original languageAmerican English
Number of pages4
StatePublished - 2018
Event2017 IEEE 44th Photovoltaic Specialist Conference (PVSC) - Washington, D.C.
Duration: 25 Jun 201730 Jun 2017


Conference2017 IEEE 44th Photovoltaic Specialist Conference (PVSC)
CityWashington, D.C.

Bibliographical note

See NREL/CP-5J00-67774 for preprint

NREL Publication Number

  • NREL/CP-5900-74014


  • modeling
  • Sentaurus
  • tandem solar cell
  • TCAD
  • three-terminal


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