A Nd@C82-polymer interface for efficient and stable perovskite solar cells

• 成果类型: Article
• 署名作者: 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
• 署名单位: Xi'an Jiaotong University; Fujian Agriculture & Forestry University; Xi'an Jiaotong University; Henan University; University of Macau; Nanjing University of Posts & Telecommunications; Henan Academy of Sciences; Shandong University; Shandong University; Xi'an Jiaotong University; Xi'an Jiaotong University; Wuhan University; University of Texas System; University of Texas El Paso; Barcelona Institute of Science & Technology; Universitat Rovira i Virgili; Institute of Chemical Research of Catalonia; Northwestern Polytechnical University
• 刊物名称: Nature
• ISSN/ISSBN: 0028-1436
• DOI: 10.1038/s41586-025-08961-9
• 发表日期: 2025-06-05
• 关键词: hole transport; fill factors

摘要

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 PSCs1, 2-3. Here we report a magnetic endohedral metallofullerene Nd@C82-polymer coupling layer, which features ultrafast electron extraction and in situ encapsulation, thereby promoting homogeneous electron extraction and suppressing ion interdiffusion. The Nd@C82-polymer coupling layer in PSCs exhibited a PCE of 26.78% (certified 26.29%) and 23.08% with an aperture area of 0.08 cm2 and 16 cm2 (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 degrees C.