How Stable Is the 2D/3D Interface of Metal Halide Perovskite under Light and Heat?

Chakkamalayath, Jishnudas; Hiott, Nathaniel; Kamat, Prashant V.

doi:10.1021/acsenergylett.2c02408

How Stable Is the 2D/3D Interface of Metal Halide Perovskite under Light and Heat?

Journal Article · Tue Nov 22 00:00:00 EST 2022 · ACS Energy Letters

DOI:https://doi.org/10.1021/acsenergylett.2c02408· OSTI ID:1909214

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Univ. of Notre Dame, IN (United States); University of Notre Dame
Univ. of Notre Dame, IN (United States)

In this study, a (PEA)₂PbI₄ (2D) layer deposited on a MAPbI₃ (3D) film undergoes a transformation upon photoirradiation and thermal treatment. The decrease in absorption and emission of the 2D layer during light and heat exposure, which shows migration of the PEA⁺ cation within the 3D film, points out the dynamic nature of the 2D/3D interface and intermixing of the two phases.

View Accepted Manuscript (DOE)

Research Organization:: Univ. of Notre Dame, IN (United States); University of Notre Dame, IN (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences & Biosciences Division

Grant/Contract Number:: FC02-04ER15533; SC0014334

OSTI ID:: 1909214

Alternate ID(s):: OSTI ID: 2338296

Journal Information:: ACS Energy Letters, Journal Name: ACS Energy Letters Journal Issue: 1 Vol. 8; ISSN 2380-8195

Publisher:: American Chemical Society (ACS)Copyright Statement

Country of Publication:: United States

Language:: English

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