Eliminating Hole Extraction Barrier in 1D/3D Perovskite Heterojunction for Efficient and Stable Carbon‐Based CsPbI3 Solar Cells with a Record Efficiency
Jiage Lin,
Rong Huang,
Xin Peng
et al.
Abstract:Carbon‐based perovskite solar cells (C‐PSCs) have the advantages of low‐cost and high‐stability, but their photovoltaic performance is limited by severe defect‐induced recombination and low hole extraction efficiency. 1D perovskite is proven to effectively passivate the defects on the perovskite surface, therefore reducing non‐radiative recombination loss. However, the unsuitable energy level of most 1D perovskite renders an undesired downward band bending for 3D perovskite, resulting in a high hole extraction… Show more
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