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Salt passivation of perovskite often results in formation of 2D perovskite layers, which impaired charge transport behaviour. Here, the authors study the energy barrier of 2D perovskite formation upon passivation by different iodide salt, and provide insight how to manipulate this to maximise device performance.
Michael Graetzel, Shaik Mohammed Zakeeruddin, Mounir Driss Mensi, Felix Thomas Eickemeyer, Anurag Krishna, Essa Awadh R Alharbi, Thomas Paul Baumeler, Georgios Kakavelakis, Rashmi Runjhun, Viktor Skorjanc
Paul Joseph Dyson, Zhaofu Fei, Tom Theodorus Antonius Lummen, Yong Ding, Bin Ding, Keith Gregory Brooks
Michael Graetzel, Shaik Mohammed Zakeeruddin, Ursula Röthlisberger, Felix Thomas Eickemeyer, Xiong Li, Mingyang Wei, Mathias Dankl