Inducing swift nucleation morphology control for efficient planar perovskite solar cells by hot-air quenching
SCIE
SCOPUS
- Title
- Inducing swift nucleation morphology control for efficient planar perovskite solar cells by hot-air quenching
- Authors
- Song, Seulki; Horantner, Maximilian T.; Choi, Kyoungwon; Snaith, Henry J.; Park, Taiho
- Date Issued
- 2017-11
- Publisher
- ROYAL SOCIETY OF CHEMISTRY
- Abstract
- We introduce 1 step pin-hole free CH(3)NH(3)PbI(3-x)C(l)x 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 degrees 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 cm(2)) that is generally prone to shunting paths.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/36660
- DOI
- 10.1039/C6TA09020F
- ISSN
- 2050-7488
- Article Type
- Article
- Citation
- Journal of Materials Chemistry A, vol. 5, no. 8, page. 3812 - 3818, 2017-11
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