Fig. 1
From: Incorporation of Ln-Doped LaPO4 Nanocrystals as Luminescent Markers in Silica Nanoparticles
a XRD of LaPO4 nanocrystals shown in c. The red bars indicate the positions and relative intensities of the XRD pattern of bulk LaPO4 [PDF 00-032-0493]. b–d TEM images of LaPO4:Eu3+ nanocrystals synthesized with different amounts of tributylamine capping ligands. b LaPO4 nanocrystals of 4.2 ± 0.9 nm for a LnCl3 to ligand ratio of 1:4. c LaPO4 nanocrystals of 6.1 ± 1.2 nm for a LnCl3 to ligand ratio of 2:1. d LaPO4 nanocrystals of 7.9 ± 1.8 nm for a 4:1 ratio