Green energy by recoverable triple-oxide mesostructured perovskite photovoltaics

Avi Schneider, Ariel Efrati, Stav Alon, Maayan Sohmer, Lioz Etgar*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


Perovskite solar cells have developed into a promising branch of renewable energy. A combination of feasible manufacturing and renewable modules can offer an attractive advancement to this field. Herein, a screen-printed three-layered all-nanoparticle network was developed as a rigid framework for a perovskite active layer. This matrix enables perovskite to percolate and form a complementary photoactive network. Two porous conductive oxide layers, separated by a porous insulator, serve as a chemically stable substrate for the cells. Cells prepared using this scaffold structure demonstrated a power conversion efficiency of 11.08% with a high open-circuit voltage of 0.988 V. Being fully oxidized, the scaffold demonstrated a striking thermal and chemical stability, allowing for the removal of the perovskite while keeping the substrate intact. The application of a new perovskite in lieu of a degraded one exhibited a full regeneration of all photovoltaic performances. Exclusive recycling of the photoactive materials from solar cells paves a path for more sustainable green energy production in the future.

Original languageAmerican English
Pages (from-to)31010-31017
Number of pages8
JournalProceedings of the National Academy of Sciences of the United States of America
Issue number49
StatePublished - 8 Dec 2020

Bibliographical note

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© 2020 National Academy of Sciences. All rights reserved.


  • Environmental science
  • Perovskite solar cells
  • Sustainability


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