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1
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Supporting Information
Supporting Information is available from the Wiley Online Library or
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Acknowledgements
P.A. and N.L.C.L. contributed equally to this work. This work was
financially supported by the National Science Foundation of China (No.
21788102), the Research Grants Council of Hong Kong (Nos. 16305618,
16305518, N-HKUST609/19, C6009-17G, and AoE/P-02/12), the Innovation
and Technology Commission (No. ITC-CNERC14SC01), and the Science
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Conflict of Interest
The authors declare no conflict of interest.
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Keywords
charge recombination, charge separation, charge transfer, organic long-
persistent luminescence, phosphonium salts
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