Chiral Phosphine-Copper Iodide Hybrid Cluster Assemblies for Circularly Polarized Luminescence

Jing-Jing Wang; Hui-Ting Zhou; Jun-Nan Yang; Li-Zhe Feng; Ji-Song Yao; Kuang-Hui Song; Man-Man Zhou; Shan Jin; Guozhen Zhang; Hong-Bin Yao

doi:10.1021/jacs.1c05476

Chiral Phosphine-Copper Iodide Hybrid Cluster Assemblies for Circularly Polarized Luminescence

J Am Chem Soc. 2021 Jul 28;143(29):10860-10864. doi: 10.1021/jacs.1c05476. Epub 2021 Jul 19.

Authors

Jing-Jing Wang^{1

2}, Hui-Ting Zhou^{1

3}, Jun-Nan Yang^{1

2}, Li-Zhe Feng^{1

2}, Ji-Song Yao^{1

2}, Kuang-Hui Song^{1

2}, Man-Man Zhou^{4

5}, Shan Jin^{5

6}, Guozhen Zhang^{1

3}, Hong-Bin Yao^{1

2}

Affiliations

¹ Division of Nanomaterials & Chemistry, Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei, Anhui 230026, China.
² Department of Applied Chemistry, Hefei Science Center of Chinese Academy of Sciences, University of Science and Technology of China, Hefei, Anhui 230026, China.
³ Department of Chemical Physics, Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China.
⁴ Department of Chemistry and Center for Atomic Engineering of Advanced Materials, Anhui University, Hefei, Anhui 230601, China.
⁵ Key Laboratory of Structure and Functional Regulation of Hybrid Materials, Anhui University, Ministry of Education, Hefei, Anhui 230601, China.
⁶ Institutes of Physical Science and Information Technology, Anhui University, Hefei, Anhui 230601, China.

PMID: 34279083
DOI: 10.1021/jacs.1c05476

Abstract

Chiral chromophores and their ordered assemblies are intriguing for yielding circularly polarized luminescence (CPL) and exploring intrinsic structure-light emission relationships. With the extensively studied chiral organic molecules and inorganic nanoparticle assemblies for the amplified CPL, the assemblies of copper halide hybrid clusters have attracted intensive attention due to their potential efficient CPL. Here, we report robust chiral phosphine-copper iodide hybrid clusters and their layered assemblies in crystalline states for amplified CPL. We reveal that the intermolecular interactions endow the clusters with the capability of assembling into chiral crystalline CPL materials, including hexagonal platelet-shaped microcrystals (g_lum ≈ 9.5 × 10^-3) and highly oriented crystalline films (g_lum ≈ 5 × 10^-3). Owing to the high crystalline feature of the thin film, we demonstrate an electroluminescent device with bright electroluminescence (1200 cd m^-2).