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

Research output: Contribution to journalArticlepeer-review

9 Scopus citations

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 languageEnglish (US)
Pages (from-to)9465-9470
Number of pages6
JournalJOURNAL OF MATERIALS CHEMISTRY C
Volume10
Issue number25
DOIs
StatePublished - Jun 7 2022

Bibliographical note

KAUST Repository Item: Exported on 2022-07-05
Acknowledgements: This work was supported by funding from the National Natural Science Foundation (22075022 and 21703008) and the “Cultivate Creative Talents Project” of Beijing Institute of Technology (BIT).

ASJC Scopus subject areas

  • General Chemistry
  • Materials Chemistry

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