Mechanically Robust and Self-Healable Perovskite Solar Cells

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Track Code	2020-DOU-69145
Categories	Chemical Engineering Materials and Manufacturing
Keywords	Chemical Engineering diffusion Energy Conversion Energy Efficient Materials and Manufacturing Materials Science Mechanical Properties Power power electronics rheology Solar Solar Technology Thin Film Electronics Thin Films Wearable Electronics Wearable Technology
Public Abstract	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. Advantages: -Robust -Self-Healing -Portable -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
People	Dou, Letian (Project leader) Finkenauer, Blake Peter
Intellectual Property	Application Date Apr 14, 2022 Type Utility-Gov. Funding Country of Filing United States Patent Number (None) Issue Date (None) Application Date May 8, 2021 Type Provisional-Gov. Funding Country of Filing United States Patent Number (None) Issue Date (None) Application Date Apr 14, 2021 Type Provisional-Gov. Funding Country of Filing United States Patent Number (None) Issue Date (None)
Contact OTC	Purdue Office of Technology Commercialization The Convergence Center 101 Foundry Drive, Suite 2500 West Lafayette, IN 47906 Phone: (765) 588-3475 Fax: (765) 463-3486 Email: otcip@prf.org