Figure 8.
(a): Transient absorption spectra of Na(ARS) in H2O (pH = 3), OD400nm = 0.54, (b): [La(OH)2][ARS] nanoparticles in H2O (pH = 3), OD400nm = 0.57 (bottom). All samples were irradiated with λ = 400 and E = 1 µJ. The masked area in the vicinity of the pump pulse is broader for [La(OH)2] [ARS] due to higher scattering by the nanoparticles. Stationary absorption (blue) and emission spectra (red) are added on top. Grey bar covers the scattered light from the excitation pulse. (ps = picosecond, ns = nanosecond).