用于高效稳定钙钛矿太阳能电池的钕@碳聚合物界面
A Nd@C-polymer interface for efficient and stable perovskite solar cells.
作者信息
Lin Yuexin, Lin Zhichao, Lv Shili, Shui Yuan, Zhu Wenjing, Zhang Zuhong, Yang Wenhan, Zhao Jinbo, Gu Hao, Xia Junmin, Wang Danning, Du Fenqi, Zhu Annan, Liu Jin, Cai Hairui, Wang Bin, Zhang Nan, Wang Haibin, Liu Xiaolong, Liu Tao, Kong Chuncai, Zhou Di, Chen Shi, Yang Zhimao, Li Tao, Ma Wei, Fang Guojia, Echegoyen Luis, Xing Guichuan, Yang Shengchun, Yang Tao, Cai Wenting, Li Meng, Huang Wei, Liang Chao
机构信息
MOE Key Laboratory for Nonequilibrium Synthesis and Modulation of Condensed Matter, School of Physics, National Innovation Platform (Center) for Industry-Education Integration of Energy Storage Technology, Xi'an Jiaotong University, Xi'an, People's Republic of China.
College of Material Engineering, Fujian Agriculture and Forestry University, Fuzhou, People's Republic of China.
出版信息
Nature. 2025 Apr 8. doi: 10.1038/s41586-025-08961-9.
An important challenge in the commercialization of perovskite solar cells (PSCs) is the simultaneous attainment of high power conversion efficiency (PCE) and high stability. Using polymer interfaces in PSCs can enhance durability by blocking water and oxygen and by suppressing ion interdiffusion, but their electronic shielding poses a challenge for efficient and stable PSCs. Here we report a magnetic endohedral metallofullerene Nd@C-polymer coupling layer, which features ultrafast electron extraction and in situ encapsulation, thereby promoting homogeneous electron extraction and suppressing ion interdiffusion. The Nd@C-polymer coupling layer in PSCs exhibited a PCE of 26.78% (certified 26.29%) and 23.08% with an aperture area of 0.08 cm and 16 cm (modules), respectively. The unencapsulated devices retained about 82% of the initial PCE after 2,500 h of continuous 1-sun maximum power point operation at 65 °C.
钙钛矿太阳能电池（PSC）商业化过程中的一个重要挑战是同时实现高功率转换效率（PCE）和高稳定性。在PSC中使用聚合物界面可以通过阻挡水和氧气以及抑制离子互扩散来提高耐久性，但其电子屏蔽对高效稳定的PSC构成了挑战。在此，我们报道了一种磁性内嵌金属富勒烯Nd@C-聚合物耦合层，其具有超快电子提取和原位封装功能，从而促进均匀的电子提取并抑制离子互扩散。PSC中的Nd@C-聚合物耦合层在孔径面积为0.08 cm²和16 cm²（模块）时，PCE分别为26.78%（认证值26.29%）和23.08%。未封装的器件在65°C下连续1个太阳最大功率点运行2500小时后，仍保留了约82%的初始PCE。
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