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| Content Provider | Royal Society of Chemistry (RSC) |
|---|---|
| Author | Guo, Panfeng Tu, Yongguang Wu, Tongyue Huang, Miaoliang Lin, Jianming Liu, Quanzhen Wu, Jihuai Lan, Zhang Li, Sizhong He, Xin Luo, Hui Wang, Kai Huang, Yunfang |
| Copyright Year | 2017 |
| Abstract | The organic–inorganic lead halide layer is a crucial factor in determining the photovoltaic performance of perovskite solar cells. Based on solvent engineering, we developed a three-step sequential coating method to prepare a high-quality CH3NH3PbI3 layer based on solvent (isopropanol) substitution. Stonehenge-like PbI2 nanostructures with controllable morphology and crystallinity were prepared by solvent substitution instead of the conventional annealing-treatment, affording several channels for CH3NH3I to penetrate into the PbI2 film due to volume expansion, and thus enabling the complete conversion from PbI2 to perovskite. In addition, the device exhibited high reproducibility by our method and achieved a high 17.78% power conversion efficiency under one-sun illumination. Furthermore, we optimized the production craft and successfully fabricated a uniform perovskite film (10 cm × 10 cm) via solvent substitution. |
| Starting Page | 4376 |
| Ending Page | 4383 |
| Page Count | 8 |
| File Format | HTM / HTML PDF |
| ISSN | 20507488 |
| Volume Number | 5 |
| Issue Number | 9 |
| Journal | Journal of Materials Chemistry A |
| DOI | 10.1039/c6ta11004e |
| Language | English |
| Publisher | Royal Society of Chemistry |
| Access Restriction | Open |
| Subject Keyword | Halogen Solar cell Perovskite Solvent Isopropyl alcohol Lead(II) iodide |
| Content Type | Text |
| Resource Type | Article |
| Subject | Chemistry Renewable Energy, Sustainability and the Environment Materials Science |
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