Differentiating the 2D Passivation from Amorphous Passivation in Perovskite Solar Cells (IMAGE)
Caption
- Benzamidine derivatives are utilized to differentiate between 2D passivation and amorphous passivation.
- Introducing an n-type 2D passivation layer enhances the charge extraction and transportation and reduces the interface recombination in inverted perovskite solar cells.
- The intramolecular charge of organic ligands is critical for the formation of crystalline 2D capping layers on 3D perovskite layers.
- The long-term stability of inverted perovskite solar cells is improved owing to hydrophobic sealing of 3D perovskite via crystalline 2D capping.
Credit
Xiaojian Zheng, Shehzad Ahmed, Yu Zhang, Guoqiang Xu, Junyu Wang, Di Lu, Tingshu Shi, Jun Tang, Lei Yan, Wei Chen, Peigang Han, Zhixin Liu*, Danish Khan*, Xingzhu Wang*, Zeguo Tang*.
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License
CC BY-NC-ND