|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 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 cycles and exhibited 94% power conversion efficiency.
-High Power Conversion Efficiency
-Retention of Mechanical Properties
-Enhanced Rheological Properties
-Perovskite Solar Cells
-Wearable Energy Harvesting Devices
"Mechanically Robust and Self-Healable Perovskite Solar Cells"
Cell Reports Physical Science
May 8, 2021
Apr 14, 2021
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