Volume 60, Issue 52 pp. 27195-27200
Communication

Influence of Isomerism on Radioluminescence of Purely Organic Phosphorescence Scintillators

Chaomin Dong

Chaomin Dong

Key Laboratory of Flexible Electronics & Institute of Advanced Materials, Nanjing Tech University, Nanjing, 211800 China

These authors contributed equally.

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Dr. Xiao Wang

Dr. Xiao Wang

Frontiers Science Center for Flexible Electronics, Xi'an Institute of Flexible Electronics and Xi'an Institute of Biomedical Materials & Engineering, Northwestern Polytechnical University, Xi'an, 710072 China

These authors contributed equally.

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Wenqi Gong

Wenqi Gong

Key Laboratory of Flexible Electronics & Institute of Advanced Materials, Nanjing Tech University, Nanjing, 211800 China

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Wenbo Ma

Wenbo Ma

State Key Laboratory of Modern Optical Instrumentation, College of Optical Science and Engineering, Zhejiang University, Hangzhou, Zhejiang, 310027 China

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Meng Zhang

Meng Zhang

Key Laboratory of Flexible Electronics & Institute of Advanced Materials, Nanjing Tech University, Nanjing, 211800 China

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Jingjie Li

Jingjie Li

Key Laboratory of Flexible Electronics & Institute of Advanced Materials, Nanjing Tech University, Nanjing, 211800 China

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Yuan Zhang

Yuan Zhang

Key Laboratory of Flexible Electronics & Institute of Advanced Materials, Nanjing Tech University, Nanjing, 211800 China

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Zixing Zhou

Zixing Zhou

Key Laboratory of Flexible Electronics & Institute of Advanced Materials, Nanjing Tech University, Nanjing, 211800 China

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Zhijian Yang

Zhijian Yang

MOE Key Laboratory for Analytical Science of Food Safety and Biology, State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350002 China

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Shuli Qu

Shuli Qu

Key Laboratory of Flexible Electronics & Institute of Advanced Materials, Nanjing Tech University, Nanjing, 211800 China

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Qian Wang

Qian Wang

Key Laboratory of Flexible Electronics & Institute of Advanced Materials, Nanjing Tech University, Nanjing, 211800 China

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Zhu Zhao

Zhu Zhao

Key Laboratory of Flexible Electronics & Institute of Advanced Materials, Nanjing Tech University, Nanjing, 211800 China

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Guohui Yang

Guohui Yang

Key Laboratory of Flexible Electronics & Institute of Advanced Materials, Nanjing Tech University, Nanjing, 211800 China

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Anqi Lv

Anqi Lv

Key Laboratory of Flexible Electronics & Institute of Advanced Materials, Nanjing Tech University, Nanjing, 211800 China

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Huili Ma

Huili Ma

Key Laboratory of Flexible Electronics & Institute of Advanced Materials, Nanjing Tech University, Nanjing, 211800 China

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Prof. Qiushui Chen

Prof. Qiushui Chen

MOE Key Laboratory for Analytical Science of Food Safety and Biology, State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou, 350002 China

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Prof. Huifang Shi

Corresponding Author

Prof. Huifang Shi

Key Laboratory of Flexible Electronics & Institute of Advanced Materials, Nanjing Tech University, Nanjing, 211800 China

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Prof. Yang (Michael) Yang

Corresponding Author

Prof. Yang (Michael) Yang

State Key Laboratory of Modern Optical Instrumentation, College of Optical Science and Engineering, Zhejiang University, Hangzhou, Zhejiang, 310027 China

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Prof. Zhongfu An

Corresponding Author

Prof. Zhongfu An

Key Laboratory of Flexible Electronics & Institute of Advanced Materials, Nanjing Tech University, Nanjing, 211800 China

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First published: 17 September 2021
Citations: 58

Graphical Abstract

We present an isomerism strategy to study the effect of molecular structures on radioluminescence. Under UV-light excitation, all isomers showed bright phosphorescence with an efficiency of up to 22.8 %. Unexpectedly, both m-BA and p-BA scintillators showed bright luminescence under X-ray irradiation, which was ascribed to both excellent electrical conductivity and efficient suppression of non-radiative decay.

Abstract

There are few reports about purely organic phosphorescence scintillators, and the relationship between molecular structures and radioluminescence in organic scintillators is still unclear. Here, we presented isomerism strategy to study the effect of molecular structures on radioluminescence. The isomers can achieve phosphorescence efficiency of up to 22.8 % by ultraviolet irradiation. Under X-ray irradiation, both m-BA and p-BA show excellent radioluminescence, while o-BA has almost no radioluminescence. Through experimental and theoretical investigation, we found that radioluminescence was not only affected by non-radiation in emissive process, but also highly depended on the material conductivity caused by the different molecular packing. This study not only allows us to clearly understand the relationship between the molecular structures and radioluminescence, but also provides a guidance to rationally design new organic scintillators.

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