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南京大学/国防科技创新研究院/北京理工大学Nature: 偶极钝化的全钙钛矿叠层太阳能电池

  • 2026-06-09 22:25:31
南京大学/国防科技创新研究院/北京理工大学Nature: 偶极钝化的全钙钛矿叠层太阳能电池
2025年10月27日，Nature在线发表了南京大学林仁兴助理教授、谭海仁教授、国防科技创新研究院常超研究员和北京理工大学徐健教授课题组的研究论文，题目为《All-perovskite tandem solar cells with dipolar passivation》，论文的第一作者为Renxing Lin、Han Gao和Jing Lou。

在窄带隙（NBG）子电池中，空穴传输层（HTL）/钙钛矿界面的非辐射复合损耗限制了全钙钛矿叠层太阳能电池的功率转换效率（PCE）。对于铅锡（Pb-Sn）基窄带隙钙钛矿太阳能电池而言，最小化其埋底界面处的电荷复合尤为困难，因为传统的长链胺类钝化策略往往会导致载流子传输损耗，从而限制填充因子（FF）和短路电流密度（Jsc）。

在此研究中，作者开发了一种偶极钝化策略，该策略既能降低Pb-Sn混合钙钛矿埋底界面的陷阱密度，又可同步实现HTL/钙钛矿界面的精准能级排列。这种偶极诱导的钝化机制增强了欧姆接触，既促进了空穴向HTL的高效注入，又阻隔了电子向HTL/Pb-Sn钙钛矿界面的迁移。该方法将载流子扩散长度提升至6.2 μm，使铅Pb-Sn钛矿太阳能电池的PCE显著提高至24.9%，并获得0.911 V的开路电压（Voc）、33.1 mA cm-2的短路电流密度以及82.6%的高填充因子。更重要的是，该偶极钝化策略有效降低了叠层器件连接层对窄带隙子电池造成的接触损耗，最终推动全钙钛矿叠层太阳能电池实现了30.6%的卓越PCE（认证稳态效率达30.1%）。

图1 偶极钝化混合Pb-Sn-NBG钙钛矿太阳能电池的器件结构和能级图
图2 Pb-Sn钙钛矿/HTL界面上的电荷载流子动力学
图3 偶极钝化混合Pb-Sn窄带隙钙钛矿太阳能电池的光伏性能
图4 偶极钝化全钙钛矿叠层太阳能电池的光伏性能
【论文链接】
Lin, R., Gao, H., Lou, J. et al. All-perovskite tandem solar cells with dipolar passivation. Nature, 2025. https://doi.org/10.1038/s41586-025-09773-7
投稿日期：2025年02月14日
接收日期：2025年10月17日

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  1. CONNECT:[ UseTime:0.000935s ] mysql:host=127.0.0.1;port=3306;dbname=b460;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001520s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000625s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.011465s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.001172s ]
  6. SELECT * FROM `set` [ RunTime:0.004281s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.001294s ]
  8. SELECT * FROM `article` WHERE `id` = 573875 LIMIT 1 [ RunTime:0.013144s ]
  9. UPDATE `article` SET `lasttime` = 1782790462 WHERE `id` = 573875 [ RunTime:0.012989s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 65 LIMIT 1 [ RunTime:0.000906s ]
  11. SELECT * FROM `article` WHERE `id` < 573875 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.001010s ]
  12. SELECT * FROM `article` WHERE `id` > 573875 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000958s ]
  13. SELECT * FROM `article` WHERE `id` < 573875 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.007821s ]
  14. SELECT * FROM `article` WHERE `id` < 573875 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.007938s ]
  15. SELECT * FROM `article` WHERE `id` < 573875 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.011389s ]
0.160394s