Organic phosphors with bright triplet excitons for efficient X-ray-excited luminescence
Type
ArticleAuthors
Wang, XiaoShi, Huifang
Ma, Huili
Ye, Wenpeng
Song, Lulu
Zan, Jie
Yao, Xiaokang
Ou, Xiangyu
Yang, Guohui
Zhao, Zhu
Singh, Manjeet
Lin, Chongyang
Wang, He
Jia, Wenyong
Wang, Qian
Zhi, Jiahuan
Dong, Chaomin
Jiang, Xueyan
Tang, Yongan
Xie, Xiaoji
Yang, Yang (Michael)
Wang, Jianpu
Chen, Qiushui
Wang, Yu
Yang, Huanghao
Zhang, Guoqing
An, Zhongfu
Liu, Xiaogang
Huang, Wei

KAUST Grant Number
OSR-2018-CRG7-3736Date
2021-01-11Embargo End Date
2021-07-11Submitted Date
2020-08-12Permanent link to this record
http://hdl.handle.net/10754/666936
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Show full item recordAbstract
Materials that exhibit X-ray-excited luminescence have great potential in radiation detection, security inspection, biomedical applications and X-ray astronomy1,2,3,4,5. However, high-performance materials are almost exclusively limited to ceramic scintillators, which are typically prepared under high temperatures6. Herein we report metal-free organic phosphors based on a molecular design that supports efficient triplet exciton harvesting to enhance radioluminescence. These organic scintillators exhibit a detection limit of 33 nGy s–1, which is 167 times lower than the standard dosage for X-ray medical examination and we demonstrate their potential application in X-ray radiography. These findings provide a fundamental design principle and new route for the creation of promising alternatives to incumbent inorganic scintillators. Furthermore, they offer new opportunities for development of flexible, stretchable X-ray detectors and imagers for non-destructive radiography testing and medical imaging.Citation
Wang, X., Shi, H., Ma, H., Ye, W., Song, L., Zan, J., … Huang, W. (2021). Organic phosphors with bright triplet excitons for efficient X-ray-excited luminescence. Nature Photonics. doi:10.1038/s41566-020-00744-0Sponsors
This work is supported by the National Key R&D Program of China (grant no. 2020YFA0709900), the National Natural Science Foundation of China (grant nos. 21975120, 21875104, 91833304, 21973043, 51673095 and 61935017), the Joint Research Funds of Department of Science and Technology of Shaanxi Province and Northwestern Polytechnical University (grant no. 2020GXLH-Z-006), Natural Science Fund for Distinguished Young Scholars of Jiangsu Province (grant no. BK20180037), China National Postdoctoral Program for Innovative Talents (grant no. BX20200278), Projects of International Cooperation and Exchanges NSFC (grant no. 51811530018), the Fundamental Research Funds for the Central Universities, Agency for Science, Technology and Research (A*STAR) under its AME program (grant nos. A1883c0011 and A1983c0038), and the King Abdullah University of Science and Technology (KAUST) Office of Sponsored Research (OSR) under award no. OSR-2018-CRG7-3736.Publisher
Springer Science and Business Media LLCJournal
Nature PhotonicsAdditional Links
http://www.nature.com/articles/s41566-020-00744-0ae974a485f413a2113503eed53cd6c53
10.1038/s41566-020-00744-0