Dip-Coating of Self-Assembled Monolayers for Perovskite Photovoltaic Applications

Abstract

Self-assembled monolayers (SAMs) have received increasing interest in the application of perovskite photovoltaics (PV). However, the deposition of SAMs in most of the studies rely on spin-coating, which is impractical for upscaling applications. In this work, the dip-coating deposition of SAMs is studied for application in p-i-n structured perovskite solar cells. It is found that the dip-coating can not only replace spin-coating in device fabrication but also provide improved uniformity and density of the SAM compared to spin-coating, which leads to enhanced charge extraction with reduced interface defects. Consequently, the perovskite solar cells prepared with the dip-coated SAM demonstrates an improved power conversion efficiency of 23.5%, providing a new pathway for the commercialization of SAMs-based perovskite.

Keywords

dip-coating / perovskite / self-assembled monolayers

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2025 The Author(s). EcoEnergy published by John Wiley & Sons Australia, Ltd on behalf of China Chemical Safety Association.