Fabrication of Flexible Perovskite Solar Cells via Rapid Thermal Annealing

Blake Martin, Mengjin Yang, Rosemary Bramante, Eric Amerling, Gautam Gupta, Maikel van Hest, Thad Druffel

Research output: Contribution to journalArticlepeer-review

11 Scopus Citations


Adaptability, lightweight, and low cost of materials make flexible perovskite solar cells essential for the perovskite technology to breach commercial photovoltaic markets. Roll-to-roll manufacturing has great potential for high-throughput perovskite manufacturing; however, conventional annealing methods are not capable of producing flexible perovskite solar cells at scale. Conventional methods are time consuming and may compromise functionality of flexible substrates under tension. Here, we introduce a blade-coated perovskite thin film on flexible ITO-coated PET annealed via rapid thermal annealing (RTA) that reduces post-deposition processing time from ~150 s to ~14 s. Performance was not sacrificed for scalability as a perovskite solar cell was produced with a power conversion efficiency (PCE) of 14.58%.

Original languageAmerican English
Article numberArticle No. 128215
Number of pages4
JournalMaterials Letters
StatePublished - 1 Oct 2020

Bibliographical note

Publisher Copyright:
© 2020 Elsevier B.V.

NREL Publication Number

  • NREL/JA-5K00-77126


  • flexible perovskite
  • manufacturing
  • perovskite
  • PV
  • rapid thermal annealing
  • roll-to-roll
  • RTA
  • solar


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