Extrinsic nature of the broad photoluminescence in lead iodide-based Ruddlesden–Popper perovskites

The Ruddlesden–Popper type of halide perovskites are gaining interest but the origin of their broad band emission remains elusive. Here Kahmann et al. suggest that in-gap states, instead of the commonly believed self-trapped excitons, are responsible for the broad band emission in crystalline sample...

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Bibliographic Details
Main Authors: Simon Kahmann, Eelco K. Tekelenburg, Herman Duim, Machteld E. Kamminga, Maria A. Loi
Format: article
Language:EN
Published: Nature Portfolio 2020
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Online Access:https://doaj.org/article/561a24c9ce7840e7aeff67c0cf5a0e4a
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Summary:The Ruddlesden–Popper type of halide perovskites are gaining interest but the origin of their broad band emission remains elusive. Here Kahmann et al. suggest that in-gap states, instead of the commonly believed self-trapped excitons, are responsible for the broad band emission in crystalline samples.