PlumX Metrics
Embed PlumX Metrics

Anomalous intense emission of the D/F transition for reddish-orange light-emitting and fluorescent probe for multiple lattice sites in β-PbF:Eu/K oxyfluoride glass ceramics

New Journal of Chemistry, ISSN: 1369-9261, Vol: 48, Issue: 26, Page: 11874-11885
2024
  • 0
    Citations
  • 0
    Usage
  • 4
    Captures
  • 0
    Mentions
  • 0
    Social Media
Metric Options:   Counts1 Year3 Year

Metrics Details

Article Description

Herein, β-PbF:Eu/K glass ceramics (GCs) were synthesized and characterized by X-ray diffraction (XRD), photoluminescence (PL) and decay curves. Based on the XRD analysis, it was inferred that Eu and K ions were doped in the β-PbF lattice by substituting Pb ions. Compared with the interstitial fluorine (F) (Eu + F = Pb), K substitutional doping (Eu + K = 2Pb) was the preferential charge-compensating mechanism with the introduction of K ions in the β-PbF:Eu GCs. Consequently, this is the first report on the anomalous emission of the D/F transition in β-PbF:Eu GCs. Based on this anomalous D/F transition, a new lattice site with D symmetry occupied by Eu ions was proposed for the first time in β-PbF:Eu GCs. Moreover, according to the intensity ratio of I(D/F)/I(D/F) (I/I), I(D/F)/I(D/F) (I/I) and I(D/F)/I(D/F) (I/I), the breaking of the local lattice symmetry around the Eu ions induced by K ions was demonstrated in detail. With the introduction of K ions in β-PbF:Eu GCs, the local lattice symmetry around the Eu ions continued to decrease from O to D, C, C, C, and C. Due to the effective charge-compensation of the K ions, we successfully realized the adjustment and enhancement of the reddish-orange emission from β-PbF:Eu GCs. Simultaneously, an example of Er-doped β-PbF GC was employed to demonstrate the spectral broadening effect of trivalent lanthanide ions (Ln) caused by lattice distortion and charge compensation. All these results provide insights to investigate the lattice structures of compounds and also guide researchers to design new emitting devices.

Bibliographic Details

Provide Feedback

Have ideas for a new metric? Would you like to see something else here?Let us know