Bright and Near-Unity Polarized Light Emission Enabled by Highly Luminescent Cu2I2-Dimer Cluster-Based Hybrid Materials

Jing-Jing Wang; Xiaoyu Mao; Jun-Nan Yang; Yi-Chen Yin; Ji-Song Yao; Li-Zhe Feng; Feng Zhu; Cheng Ma; Cui Yang; Gang Zou; Guozhen Zhang; Hualing Zeng; Hong-Bin Yao

doi:10.1021/acs.nanolett.1c01149

Bright and Near-Unity Polarized Light Emission Enabled by Highly Luminescent Cu₂I₂-Dimer Cluster-Based Hybrid Materials

Nano Lett. 2021 May 12;21(9):4115-4121. doi: 10.1021/acs.nanolett.1c01149. Epub 2021 Apr 22.

Authors

Jing-Jing Wang^{1

2}, Xiaoyu Mao^{3

4}, Jun-Nan Yang^{1

2}, Yi-Chen Yin^{1

2}, Ji-Song Yao^{1

2}, Li-Zhe Feng^{1

2}, Feng Zhu^{1

5}, Cheng Ma^{1

5}, Cui Yang⁶, Gang Zou⁶, Guozhen Zhang^{1

7}, Hualing Zeng^{1

3

4}, Hong-Bin Yao^{1

2}

Affiliations

¹ 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 International Center for Quantum Design of Functional Materials (ICQD), Synergetic Innovation Center of Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei, Anhui 230026, China.
⁴ Key Laboratory of Strongly-Coupled Quantum Matter Physics, Chinese Academy of Sciences, Department of Physics, University of Science and Technology of China, Hefei, Anhui 230026, China.
⁵ Department of Materials Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, China.
⁶ Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei, Anhui 230026, China.
⁷ Department of Chemical Physics, iChEM (Collaborative Innovation Center of Chemistry for Energy Materials), University of Science and Technology of China, Hefei, Anhui 230026, China.

PMID: 33885323
DOI: 10.1021/acs.nanolett.1c01149

Abstract

As one fundamental property of light, polarization has a huge impact in quantum optics and optoelectronics through light-matter interactions. However, the bright and near-unity polarized light emissions in the visible range by solid crystalline materials are scantly realized. Here, we report well-defined quasi two-dimensional (2D) hybrid crystals based on the linear alignment of Cu₂I₂-dimer/bidentate ligand hybrid clusters for achieving bright and near-unity linearly polarized light emissions. Using first-principle calculations, we demonstrate that the superaligned transition dipole moments are the key for the observed excellent polarized light emissions. To further enhance the photoluminescence (PL) polarization degree, we fabricate Cu₂I₂-dimer-based hybrid nanobelts, which display high PL quantum yield (up to 64%) and ultrahigh PL polarization degree (∼0.99). Our reported copper iodine cluster-based luminescent hybrid materials for bright and highly polarized light emissions will have great potential for future quantum optics applications.

Keywords: Cu−I hybrid cluster; linear polarization; photoluminescence; transition dipole moment.