Researchers have obtained a novel radio-photoluminescence material that exhibits fluorochromic responses to UV or X-ray irradiation. This unique material allows for dosimetry of ionizing radiation in a ratiometric manner.
A novel radio-photoluminescence material featuring fluorochromic responses toward UV or X-ray irradiation has been obtained. Such a unique monomer- to excimer-based luminescence transition allows for dosimetry of ionizing radiation in a ratiometric manner. Rather than quenching the luminescence, the radiation-induced radical species of Th-105 boost the excimer emission, rendering it as a rare material possessing radical-excimers. Deliberately blending of tpc- and pba- ligands with the hexanuclear Th4+ cores has given rise to a new radio-photoluminescence nanocluster, which exhibits a fluorochromic response toward ionizing radiation via the formation of a radical-excimer.
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