fig9
From: Energy transfer process, luminescence optimizing and various applications of lanthanide complexes
Figure 9. (A) Diagram of switchable TPE-TPY-Eu(hfac)3; (B) its emission spectra with different concentrations in CH2Cl2; (C) its excitation spectra (λem = 613 nm) in different concentrations; (D) emission dependent on different concentrations in CH2Cl2 at 298 K. This figure is used with permission from Springer Nature[36]. ACQ: Aggregation-caused quenching; AIE: aggregation-induced emission.
