Energy Material Advances / 2021 / Article / Fig 4

Research Article

Lattice Doping of Lanthanide Ions in Cs2AgInCl6 Nanocrystals Enabling Tunable Photoluminescence

Figure 4

Optical properties and application of Sm3+- and Tb3+-codoped Cs2AgInCl6 NCs. (a) Absorption spectra, (b) excitation spectra (solid line: monitored at 548 nm; dash line: monitored at 605 nm), and (c) PL spectra excited by 311 nm of Cs2AgIn(0.89-x)Cl6:0.11Tb NCs dependent with different Sm doping concentrations (, 2%, 3%, 5%, and 11%). The inset of (c): corresponding normalized PL spectra. (d) PL decay spectra monitored at 548 nm emission and 311 nm excitation with the photographs of the corresponding codoped samples under 311 nm UV irradiation. (e) PL decay spectra monitored at 605 nm emission and 311 nm excitation. (f) Scheme of spray coating using Bi-doped Cs2AgIn(0.89-x)Cl6:0.11Tb,xSm NCs as different inks.