Recently, a Chinese research team has successfully developed a high-efficiency tandem flexible solar cell, marking a significant breakthrough in next-generation photovoltaic technology. This solar cell stacks multiple light-absorbing layers with different bandgaps, enabling more efficient utilization of the solar spectrum and substantially improving power conversion efficiency. Compared to conventional single-junction silicon-based solar cells—whose theoretical efficiency limit is around 30%—the tandem architecture can push this limit beyond 45%.Built on a flexible substrate, the new cell is lightweight, bendable, and impact-resistant, making it ideal for emerging applications such as wearable electronics, drones, building-integrated photovoltaics (BIPV), and aerospace systems. The development was jointly led by the Chinese Academy of Sciences and several universities. By optimizing interfacial engineering and integrating novel perovskite/organic semiconductor combinations, the team achieved both high efficiency and stability. Lab tests show the flexible tandem cell exceeds 25% power conversion efficiency and retains over 95% of its performance after 1,000 bending cycles, demonstrating excellent mechanical durability. This advancement accelerates the commercialization of flexible photovoltaics and offers a promising technological pathway toward China’s ‘dual carbon’ goals.
近日，中国科研团队成功研发出高效叠层柔性太阳能电池，标志着我国在新一代光伏技术领域取得重要突破。该电池采用多层不同带隙的光吸收材料堆叠而成，能够更充分地利用太阳光谱，显著提升光电转换效率。与传统单结硅基太阳能电池相比，叠层结构可将理论效率极限从约30%提升至45%以上。同时，该电池基于柔性衬底制造，具备轻质、可弯曲、抗冲击等优势，适用于可穿戴设备、无人机、建筑一体化光伏（BIPV）以及航空航天等新兴应用场景。此次研发由中国科学院及相关高校联合完成，通过优化材料界面工程和引入新型钙钛矿/有机半导体组合，实现了高效率与高稳定性的兼顾。实验室测试显示，该柔性叠层电池的光电转换效率已超过25%，且在弯折1000次后性能衰减小于5%，展现出优异的机械耐久性。这一成果不仅推动了柔性光伏技术的产业化进程，也为实现‘双碳’目标提供了新的技术路径。
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