摘要
This study demonstrates a dual-interface engineering approach for performance enhancement in perovskite-silicon tandem solar cells. By applying ethylenediamine dihydroiodide (EDAI2) to simultaneously modify both top and bottom interfaces of wide-bandgap perovskite layers, we achieve synergistic defect suppression and charge transport optimization. Time-resolved photoluminescence characterization reveals extended carrier lifetimes and improved spatial homogeneity in dual-modified perovskite films. The optimized single-junction wide-bandgap (>1.66 eV) perovskite solar cells attain a champion efficiency of 22.75% with enhanced operational stability. Implemented in perovskite-silicon tandem configuration, the devices achieve over 31% power conversion efficiency, validating the effectiveness of organic ligand-mediated dual-interface engineering in regulating carrier dynamics and advancing perovskite-based tandem photovoltaics. (Figure presented.).
| 投稿的翻译标题 | 钙钛矿-硅串联太阳能电池载流子动力学优化的双界 面工程策略 |
|---|---|
| 源语言 | 英语 |
| 页(从-至) | 812-821 |
| 页数 | 10 |
| 期刊 | Science China Materials |
| 卷 | 69 |
| 期 | 2 |
| DOI | |
| 出版状态 | 已出版 - 2月 2026 |
指纹
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