2D Perovskite Layer based on Novel Organic Cation for Increased Efficiency and Stability

Low dimensional perovskites have attracted a great attention due to their remarkable stability.However, their efficiencies are not on par with their 3-dimensional counterparts, which hinderstheir commercialization. In this study, we inserted a 2-dimensional perovskite layer using a novelcation (TT), between the 3D perovskite film and the hole transport layer. 3D-2D perovskite devicesfabricated in this study exhibited a performance enhancement, resulting in an increase in theirpower conversion efficiencies (PCE) from 17% to over 19%, by improving hole extraction.Furthermore, devices showed promising stability as a result of hydrophobic nature of the TT-based2D layer. 3D-2D PSCs retained 92% of its initial PCE at 15% humidity for 25 days withoutencapsulation while the reference devices maintained only 39% of its initial efficiency.
2nd International Conference on Photovoltaic Science and Technologies


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Citation Formats
E. G. Günbaş and S. Yerci, “2D Perovskite Layer based on Novel Organic Cation for Increased Efficiency and Stability,” presented at the 2nd International Conference on Photovoltaic Science and Technologies, 2020, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/93358.