Inducing swift nucleation morphology control for efficient planar perovskite solar cells by hot-air quenching
We introduce 1 step pin-hole free CH3NH3PbI3-xClx perovskite layers by using heated airflow during the nucleation stage of the perovskite. Upon employing heated air, we stimulate uniformly distributed nuclei growth, resulting in a pin-hole free planar perovskite layer. We find an optimized heated ai...
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| Veröffentlicht in: | Journal of materials chemistry. A, Materials for energy and sustainability Materials for energy and sustainability, 2017, Vol.5 (8), p.3812-3818 |
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| container_end_page | 3818 |
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| container_issue | 8 |
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| container_title | Journal of materials chemistry. A, Materials for energy and sustainability |
| container_volume | 5 |
| creator | Song, Seulki Horantner, Maximilian T Choi, Kyoungwon Snaith, Henry J Park, Taiho |
| description | We introduce 1 step pin-hole free CH3NH3PbI3-xClx perovskite layers by using heated airflow during the nucleation stage of the perovskite. Upon employing heated air, we stimulate uniformly distributed nuclei growth, resulting in a pin-hole free planar perovskite layer. We find an optimized heated airflow of 100 degree C as the optimized condition. The resulting planar device employing a conventional TiO2 electron transporting layer exhibits 17.6% average power conversion efficiency with 14.3% maximum powerpoint (MPP) efficiency. In addition, our method gives a very reproducible perovskite layer. Thus, our pin-hole free perovskite layer allows for 14.9% efficiency in a larger area device (0.71 cm2) that is generally prone to shunting paths. |
| doi_str_mv | 10.1039/c6ta09020f |
| format | Article |
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| ispartof | Journal of materials chemistry. A, Materials for energy and sustainability, 2017, Vol.5 (8), p.3812-3818 |
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| language | eng |
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| source | Royal Society Of Chemistry Journals 2008- |
| subjects | Airflow Devices Energy conversion efficiency Lithosphere Nucleation Perovskites Quenching Titanium dioxide Transporting |
| title | Inducing swift nucleation morphology control for efficient planar perovskite solar cells by hot-air quenching |
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