Warm white light emission, thermochromic property and long persistent luminescence derived from multi-sites of Eu2+/Eu3+ in host lattice

Energy transfer properties of a single-phase Na3Gd(PO4)2:Eu2+,Mn2+ phosphor with excellent thermal stability for w-LEDs

“…S1,† the normalized emission spectra of Na 3 Gd(PO 4 ) 2 :0.01Eu 2+ and Na 3 Gd(PO 4 ) 2 :0.05Mn 2+ monitored at different excitation wavelengths nearly overlap, which further supports the idea that the Eu 2+ and Mn 2+ ions are substituted for the Na + and Gd 3+ sites in Na 3 Gd(PO 4 ) 2 , respectively. Due to the valence difference between Na + and Eu 2+ and Mn 2+ and Gd 3+ , negatively charged Na vacancies (V′ Na ) and O vacancies could be introduced and could act as defect levels during the doping process as: 25,26 …”

Self-reduction-induced BaMgP2O7:Eu2+/3+: a multi-stimuli-responsive phosphor for X-ray detection, anti-counterfeiting and optical thermometry

“…Recently, co-existence of Eu 2+ and Eu 3+ in a single-phase phosphor has attracted increasing attention. 1–5 With different electron configurations, Eu 2+ and Eu 3+ present distinct photoluminescence properties. The 4f–5d transition of Eu 2+ shows color-tunable broadband spectral features, and 4f–4f from Eu 3+ always leads to red emission peaks.…”

A multicolor‐emitted phosphor for temperature sensing and multimode dynamic anti‐counterfeiting

“…12 Furthermore, developing multifunctional integrated charge carrier trapping phosphors appears to be growing popular. Zhao et al 13 explored the multifunctional luminescence applications of K 5 Y(P 2 O 7 ) 2 :Eu, Pr 3+ . First, K 5 Y(P 2 O 7 ) 2 :Eu, Pr 3+ is an outstanding warm white light-emitting phosphor used in white light-emitting diodes.…”

“…Furthermore, developing multifunctional integrated charge carrier trapping phosphors appears to be growing popular. Zhao et al 13 . explored the multifunctional luminescence applications of K 5 Y(P 2 O 7 ) 2 :Eu, Pr 3+ .…”