Reproducible Fabrication of Perovskite Photovoltaics via Supramolecule Confinement Growth (IMAGE)
Caption
- Demonstrating a new concept of “supermolecule confined growth” of perovskite thin films by constructing a compact, ultraflat 4-tert-butylthiacalix[4]arene capping layer atop perovskite precursor film to engineer the perovskite formation dynamics.
- The supramolecule confined approach enabled the highly reproducible fabrication of perovskite films with a root mean square < 10 nm and electronic homogeneity, which significantly minimized the power conversion efficiency variations for both device-to-device and batch-to-batch solar cell devices.
- The obtained perovskite films exhibited photoluminescence quantum yield > 10% and surface recombination velocities < 100 cm s−1 for both interfaces.
Credit
Xinyi Liu, Jin Xie, Ziren Zhou, Huijun Lian, Xinyuan Sui, Qing Li, Miaoyu Lin, Da Liu, Haiyang Yuan, Feng Gao, Yongzhen Wu, Hua Gui Yang, Shuang Yang*, Yu Hou*.
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CC BY-NC-ND