What question did this study set out to answer?

The study aims to explore the impact of surface dipoles on the performance of CsPbI₃ perovskite solar cells.

March 13, 2026Energy & Environmental Science0 citationsOpen Access

The Critical Role of Surface Dipoles in CsPbI₃ Perovskite Solar Cells

RJRan JiUniversity of Electronic Science and Technology of China NGNathaniel P. GallopLeibniz Institute for Solid State and Materials Research SSShivam SinghLeibniz Institute for Solid State and Materials Research

Key Points

The study aims to explore the impact of surface dipoles on the performance of CsPbI₃ perovskite solar cells.
Investigation of surface treatment techniques for the perovskite active layer.
Evaluation of photovoltaic performance metrics pre- and post-modification.
Analysis of interfacial charge transfer dynamics.
Surface dipoles significantly enhance charge carrier mobility.
Improvements in power conversion efficiency were observed.
Effective surface treatments led to increased stability of solar cells.

Abstract

Interfacial modification is a key strategy for improving the performance of perovskite photovoltaic devices. However, most commonly, improvements in device performance through surface treatments of the perovskite active layer are...

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