Extended Data Fig. 5: Persistent luminescence properties of Ln-PLNPs with Yb3+, Pr3+, Tb3+, Dy3+ and Sm3+ as the activators.
From: X-ray-activated persistent luminescence nanomaterials for NIR-II imaging
a, TEM images of Yb-PLNPs (NaYF4:1%Yb@NaYF4), Pr-PLNPs (NaYF4:1%Pr@NaYF4), Tb-PLNPs (NaYF4:1%Tb@NaYF4), Dy-PLNPs (NaYF4:10%Tb@NaYF4) and Sm-PLNPs (NaYF4:1%Sm@NaYF4), respectively. b, g, l, PL spectra (b), Influence of activator concentration (g), and PL decay curve (l) of Yb-PLNPs. c, h, m, PL spectra (c), Influence of activator concentration (h), and PL decay curve (m) of Pr-PLNPs. d, i, n, PL spectra (d), Influence of activator concentration (i), and PL decay curve (n) of Tb-PLNPs. e, j, o, PL spectra (e), Influence of activator concentration (j), and PL decay curve (o) of Dy-PLNPs. f, k, p, PL spectra (f), Influence of activator concentration (k), and PL decay curve (p) of Sm-PLNPs. n = 3 independent experiments. Yb-PLNPs were imaged using an InGaAs CCD camera with 5 s exposure time; Pr-PLNPs, Tb-PLNPs, Dy-PLNPs and Sm-PLNPs were imaged using a SCMOS camera with 1 s exposure time. The data are shown as the mean ± s.d.
