Strong Fermi-level pinning at metal contacts to halide perovskites

Kootak Hong; Ki Chang Kwon; Kyoung Soon Choi; Quyet Van Le; Seung Ju Kim; Seung Ju Kim; Ji Su Han; Jun Min Suh; Soo Young Kim; Soo Young Kim; Carolin M. Sutter‐Fella; Ho Won Jang

doi:10.1039/d1tc03370k

Abstract

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The extrinsic Pb 0 interfacial trap states induce strong Fermi-level pinning at metal/CH 3 NH 3 PbI 3 interfaces. This is due to the interfacial reaction between the deposited metals and iodine from CH 3 NH 3 PbI 3 .

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