Combined Stress Testing of Perovskite Solar Cells for Stable Operation in Space

Kaitlyn VanSant, Ahmad Kirmani, Jay Patel, Laura Crowe, David Ostrowski, Brian Wieliczka, Michael McGehee, Laura Schelhas, Joseph Luther, Timothy Peshek, Lyndsey McMillon-Brown

Research output: Contribution to journalArticlepeer-review

2 Scopus Citations

Abstract

Perovskite solar cells (PSCs) could provide new low-cost opportunities for powering spacecraft. We are designing a PSC resilient to lunar surface conditions, focusing on contact/barrier layers combinations that maximize stability. Thermal vacuum stress shows cells with gold back-contacts and SiOx protection retain >90% of initial efficiency and indium tin oxide (ITO)-contacted cells retain ∼100% of initial efficiency after five months of stress. SiOx mitigates mechanical aspects of contact stress, retaining 99% of initial efficiency, whereas cells with silicone/cover glass decreased 27%. We further exposed cells to combined illumination, 75 °C heat, and 10-6 Torr vacuum for 24 h and found that ITO-contacted cells outperformed Au-contacted cells.

Original languageAmerican English
Pages (from-to)10319-10326
Number of pages8
JournalACS Applied Energy Materials
Volume6
Issue number20
DOIs
StatePublished - 2023

Bibliographical note

Publisher Copyright:
© 2023 American Chemical Society.

NREL Publication Number

  • NREL/JA-5K00-84338

Keywords

  • barrier layers
  • contacts
  • durability
  • perovskites
  • solar cells
  • space photovoltaics

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