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Abstract:
Up to now, most of the emisison wavelengths of the reported scintillators are located in ultra-violet (UV) or visible range. Herein, to further expand the X-ray excited fluorescence emission spectrum, an active core/dualshell nanocrystal (NC) architecture is used to actualize near-infrared scintillation. Specifically, under the X-ray excitation, near-infrared emission from Nd3+ ions at similar to 1064 and Yb3+ ions at 980 nm are achieved. The active outer shell with the incorporation of Ce3+ sensitizer ions benefited the enhancement of X-ray excited NIR fluorescence emission intensity owing to the enhanced energy transfer efficiency from Ce3+ to Nd3+ or Yb3+ emission centers. The present studied near-infrared NC scintillator have deeper penetration depth than that of UV and visible, which might be useful for X-ray imaging with improved sensitivity.
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OPTICAL MATERIALS
ISSN: 0925-3467
Year: 2020
Volume: 107
3 . 8 0 0
JCR@2023
ESI Discipline: MATERIALS SCIENCE;
ESI HC Threshold:196
JCR Journal Grade:2
CAS Journal Grade:3
Cited Count:
WoS CC Cited Count: 0
SCOPUS Cited Count:
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 2
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