Volume 63, Issue 51 e202412253
Research Article

Controllable Multi-Exciton Zero-Dimensional Antimony-Based Metal Halides for White-light Emission and β-Ray Detection

Chang-hong Wei

Chang-hong Wei

State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Chemistry and Biomedicine Innovation Center, Nanjing University, 210093 Nanjing, China

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Dr. Shipeng Dong

Dr. Shipeng Dong

State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Chemistry and Biomedicine Innovation Center, Nanjing University, 210093 Nanjing, China

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Dr. Zhiheng Xu

Dr. Zhiheng Xu

Department of Nuclear Science and Technology, School of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, 211106 Nanjing, China

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Muzi Li

Muzi Li

State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Chemistry and Biomedicine Innovation Center, Nanjing University, 210093 Nanjing, China

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Dr. Tao Zhang

Dr. Tao Zhang

Department of Radiopharmaceuticals, Nuclear Medicine Clinical Translation Center, School of Pharmacy, Nanjing Medical University, 211166 Nanjing, China

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Zhibin Xu

Zhibin Xu

Department of Nuclear Science and Technology, School of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, 211106 Nanjing, China

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Prof. Si Lan

Prof. Si Lan

School of Materials Science and Engineering, Nanjing University of Science and Technology, 210094 Nanjing, China

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Prof. Shuao Wang

Prof. Shuao Wang

State Key Laboratory of Radiation Medicine and Protection, School for Radiological and Interdisciplinary Sciences (RAD-X), Collaborative Innovation Center of Radiation Medicine of Jiangsu Higher Education Institutions, Soochow University, 215006 Suzhou, China

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Prof. Liang Mao

Corresponding Author

Prof. Liang Mao

State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Chemistry and Biomedicine Innovation Center, Nanjing University, 210093 Nanjing, China

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First published: 11 September 2024
Citations: 5

Graphical Abstract

The [SbCl5]2− luminescent center structure is formed by self-assembly of SbCl3, methylamine hydrochloride, and 18-crown ether-6. This asymmetric structure can control the emission of singlet-triplet hybrid excitons by wavelength at room temperature. Under ultraviolet irradiation at 310 nm, it shows strong emission at 470 nm, white light emission under 340 nm irradiation, and strong emission at 570 nm under 370 nm irradiation.

Abstract

Self-trapped exciton (STE) emission, typified by antimony (Sb), with broadband characteristics, represents the next generation of materials for solid-state lighting and radiation detection. However, little is known about the multiexciton behavior of the Sb emission center. Here, we proposed a general approach for designing antimony-centered multi-exciton emitting materials through self-assembly. Benefitting from controllable multiexciton behavior, dual-band white light emission spanning the entire visible spectrum was achieved. Relying on the reduction of an effective atomic number brought by self-assembly, excellent scintillation response to β-rays was attained. This study offers unprecedented insight into hybrid single/triple STE emission and unveils new avenues for single-emitter white-light emission, as well as radiographic testing using low-risk β-rays as sources.

Conflict of Interests

The authors declare no conflict of interest.

Data Availability Statement

The data that support the findings of this study are available from the corresponding author upon reasonable request.

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