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Wavelength-tunable barium gallate persistent luminescence phosphors with enhanced luminescence

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Abstract

The near-infrared (NIR) emitting wavelength-tunable Cr3+-doped barium gallate (BGO:Cr) persistent luminescence (PersL) phosphors with enhanced luminescence were reported. The emission wavelength of the BGO:Cr PersL phosphors was adjusted from 715 to 739 nm by varying the amount of Cr3+ and the ratio of Ga:Ba. Meanwhile, the luminescence intensity and afterglow of the BGO:Cr PersL phosphors were enhanced. BGO:Cr PersL phosphors exhibited UV excitation, LED light restimulation, PersL for more than 6 days, and excellent capability for information storage, which was expected to promote the development of cheap and wavelength-tunable PersL materials for practical applications.

© 2022 Chinese Laser Press

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