In a groundbreaking development, researchers at Soochow University have made significant progress toward realizing the dream of charging devices simply by exposing them to light. Under the supervision of Professor Ma Wanli, a recipient of the National Youth Plan, a team led by graduate student Yuan Jianyu from the Institute of Nanotechnology has spent over a year developing a flexible "Polymer Solar Cells" technology. Their innovation has already been patented, with two invention patents successfully applied for.
Currently, most solar cells on the market are made from traditional inorganic materials, which are often bulky, costly to produce, and require a lot of energy during manufacturing—leading to environmental concerns. In contrast, the flexible polymer solar cells developed by the team offer a game-changing alternative. Unlike silicon-based solar cells, these new cells can be bent or folded like a piece of paper, making them highly portable and lightweight. Once unfolded, they can efficiently charge devices under sunlight.
During a visit to the Suda Institute of Nano-Science and Technology, Yuan Jianyu demonstrated a new type of solar panel that looks like a transparent plastic film—similar in appearance to regular paper. It can be rolled into a cylinder or shaped in various ways. Upon closer inspection, the film is coated with a thin layer of chemicals, just 100 nanometers thick. This layer is the key component of the new solar cell, responsible for capturing sunlight and converting it into electricity.
According to Yuan Jianyu, the production process of these flexible solar cells is straightforward and scalable, allowing for mass production. The research team has completed initial laboratory tests and is now working on scaling up the technology and optimizing the manufacturing process.
Professor Alan Heeger, the 2000 Nobel Prize winner in Chemistry and pioneer of conductive polymers, along with Professor Ma Wanli, who has over a decade of experience in solar cell research, both expressed optimism about the future of this technology. They believe that with continued development, flexible solar cells could soon become a common part of daily life, offering a clean, efficient, and convenient power source for electronic devices.
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