Mechanically Robust and Self-Healable Perovskite Solar Cells

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Researchers at Purdue University have developed new mechanically robust and self-healable perovskite thin films for solar cells. The new flexible, portable, semi-conducting polymeric materials can also be implemented in wearable energy-harvesting devices and electronics applications. Unlike traditional perovskite materials that are often brittle, the new semiconducting layer is self-healing allowing for retention of optimal mechanical and rheological properties as well as enhanced durability. Purdue researchers integrate a polycrystalline halide perovskite thin film to form a composite with a bi-continuous interpenetrating network to enable synergistic grain growth and solid diffusion at high temperatures. In fabrication, 10% conversion efficiency and high stability are achieved. In testing over 3000 bending cycles, the new solar cells obtained 94% power conversion efficiency.

Technology Validation: The new self-healing semiconducting perovskite thin films have been adapted into solar cell technologies tested at high temperatures over 3000 bending cycles and exhibited 94% power conversion efficiency.

-High Power Conversion Efficiency
-Retention of Mechanical Properties
-Enhanced Rheological Properties

Potential Applications:
-Perovskite Solar Cells
-Wearable Energy Harvesting Devices
-Power Electronics

Recent Publication:
"Mechanically Robust and Self-Healable Perovskite Solar Cells"
Cell Reports Physical Science
DOI: 10.1016/j.xcrp.2020.100320
Apr 14, 2022
Utility-Gov. Funding
United States

May 8, 2021
Provisional-Gov. Funding
United States

Apr 14, 2021
Provisional-Gov. Funding
United States
Purdue Office of Technology Commercialization
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