In:
Journal of the American Ceramic Society, Wiley, Vol. 102, No. 9 ( 2019-09), p. 5465-5470
Abstract:
Persistent luminescence (PersL) phosphor is a glow‐in‐the‐dark material that has been widely applied. Here, we report a multicolor PersL phosphor Sr 2 Ga 2 GeO 7 :Pr 3+ . The PersL color can be tuned from deep red to blue. It reveals that the luminescent color modulation of the Sr 2 Ga 2 GeO 7 :Pr 3+ phosphor is essentially associated with the cross‐relaxation effect of Pr 3+ in the host with low‐phonon assistance energy. The PersL lifetime of the multicolor phosphors can be also tuned. Based on the unique features of Sr 2 Ga 2 GeO 7 :Pr 3+ phosphor, some simple PersL images are fabricated to emit dynamic multicolor information, and it shows that the PersL image even depicts dynamic multicolor anticounterfeiting.
Type of Medium:
Online Resource
ISSN:
0002-7820
,
1551-2916
DOI:
10.1111/jace.2019.102.issue-9
Language:
English
Publisher:
Wiley
Publication Date:
2019
detail.hit.zdb_id:
2008170-4
detail.hit.zdb_id:
219232-9
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