Fudan University professor team successfully prepared fabric solar cells

Professor Peng Huisheng from the School of Polymer Science at our university recently introduced an innovative approach by stacking fabric electrodes, successfully creating fabric-based solar cells. These advanced cells can be woven into different types of fabrics, offering a promising solution for wearable electronic devices. The research was published online in *Angewandte Chemie International Edition*, one of the most respected journals in the field of chemistry. The paper, authored by Dr. Pan Shaowu, a doctoral student in the research group, was quickly recognized as a "Hot Paper." The journal also released a special feature titled "Wearable Solar Cells," highlighting the significance of this breakthrough. This achievement marks a follow-up to the group's earlier work on stretchable linear supercapacitors, which had previously been featured in a special issue of the same journal. On May 30th, *Science* magazine covered the research under the title "Weaving Solar Energy into Fabrics," drawing global attention from both academic and public media. Wearable technology is becoming the future of electronics. Beyond basic functionality, these devices must be lightweight, flexible, and easy to integrate into daily life. In recent years, researchers have explored linear micro-cells as a more compact and wearable alternative to traditional planar solar cells. While these linear devices can be woven into textiles, the challenge of producing functional fabric-based solar cells has remained unsolved—until now. Building upon previous work on linear solar cells, Professor Peng’s team made significant progress. They first coated titanium silk fabric with a photoactive material to create a working electrode. Then, they used aligned carbon nanotube fibers—known for their excellent mechanical and electrical properties—as the counter electrode. Finally, they carefully combined the two fabric electrodes, added an electrolyte, and encapsulated the structure. This process led to the successful creation of fabric solar cells. Once commercialized, this technology could revolutionize how people use electricity in daily life. It would offer a convenient solar charging option during outdoor activities, expeditions, and other situations where power sources are limited. The resulting fabric devices are not only easy to wear and low-cost but also have the potential to merge with fashion design. Their unique battery dyes could provide a dual experience of technological innovation and aesthetic appeal.

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