Junction Formation and Interface Effects in CZTSe Solar Cells

Brion Bob, Jian V. Li, Carolyn Beall, Jeff Carapella, Clay Dehart, Yang Yang, Ingrid L. Repins

Research output: Contribution to conferencePaperpeer-review


The space charge distribution across the CZTSe/CdS heterojunction plays an important role in defining the recombination properties of Kesterite solar cells. We have conducted a study designed to manipulate the shape of the space charge region and trigger changes in the magnitude of interface recombination present in our devices. In doing so, we have observed the creation and removal of a secondary barrier in the conduction band of coevaporated CZTSe cells, and found that completed devices do not exhibit the changes in device properties that would be expected for devices dominated by interface recombination.

Original languageAmerican English
Number of pages5
StatePublished - 15 Oct 2014
Event40th IEEE Photovoltaic Specialist Conference, PVSC 2014 - Denver, United States
Duration: 8 Jun 201413 Jun 2014


Conference40th IEEE Photovoltaic Specialist Conference, PVSC 2014
Country/TerritoryUnited States

Bibliographical note

Publisher Copyright:
© 2014 IEEE.

NREL Publication Number

  • NREL/CP-5J00-63533


  • charge carrier processes
  • interface phenomena
  • Photovoltaic cells
  • space charge
  • thin film devices


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