Broadband white-light emission from a novel two-dimensional metal halide assembled by Pb-Cl hendecahedrons

Runan Chen; Hao Gu; Ying Han; Jun Yin; Guichuan Xing; Bin Bin Cui

doi:10.1039/d2tc01472f

Broadband white-light emission from a novel two-dimensional metal halide assembled by Pb-Cl hendecahedrons

Runan Chen, Hao Gu, Ying Han, Jun Yin, Guichuan Xing, Bin Bin Cui^*

^*Corresponding author for this work

Advanced Research Institute of Multidisciplinary Science

Research output: Contribution to journal › Article › peer-review

11 Citations (Scopus)

Abstract

The abundant selection of organic molecules and inorganic units has allowed for the fabrication of organic-inorganic hybrid metal halides (OIMHs) of various morphologies and crystal structures with controllable molecular dimensions and unique photoelectric properties. This work reports a unique two-dimensional (2D) OIMH, C₆H₁₀N₂Pb₂Cl₆, which comprises distinctive lead chloride hendecahedrons, (Pb₂Cl₆)²⁻, and p-phenylenediamium cations. The extremely large lattice distortion endows this 2D OIMH with strong electron-phonon coupling and an abundance of self-trapped excitons (STEs), which contribute to its broadband “cold” white-light emission with a large Stokes shift (∼200 nm) and a remarkable photoluminescence quantum efficiency (PLQE) of over 17% in 2D OIMHs.

Original language	English
Pages (from-to)	9465-9470
Number of pages	6
Journal	Journal of Materials Chemistry C
Volume	10
Issue number	25
DOIs	https://doi.org/10.1039/d2tc01472f
Publication status	Published - 7 Jun 2022

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Chen, R., Gu, H., Han, Y., Yin, J., Xing, G., & Cui, B. B. (2022). Broadband white-light emission from a novel two-dimensional metal halide assembled by Pb-Cl hendecahedrons. Journal of Materials Chemistry C, 10(25), 9465-9470. https://doi.org/10.1039/d2tc01472f

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abstract = "The abundant selection of organic molecules and inorganic units has allowed for the fabrication of organic-inorganic hybrid metal halides (OIMHs) of various morphologies and crystal structures with controllable molecular dimensions and unique photoelectric properties. This work reports a unique two-dimensional (2D) OIMH, C6H10N2Pb2Cl6, which comprises distinctive lead chloride hendecahedrons, (Pb2Cl6)2−, and p-phenylenediamium cations. The extremely large lattice distortion endows this 2D OIMH with strong electron-phonon coupling and an abundance of self-trapped excitons (STEs), which contribute to its broadband “cold” white-light emission with a large Stokes shift (∼200 nm) and a remarkable photoluminescence quantum efficiency (PLQE) of over 17% in 2D OIMHs.",

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AU - Xing, Guichuan

AU - Cui, Bin Bin

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Broadband white-light emission from a novel two-dimensional metal halide assembled by Pb-Cl hendecahedrons

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