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(Top): stationary absorption spectrum and (bottom): transient absorption spectra of [La(OH)2][ARS] nanoparticles in H2O (pH = 7), OD400nm = 2.13, λex = 530 nm, E = 0.9 µJ at delay times as indicated (ps = picosecond, ns = nanosecond). Grey bar covers the scattered light from the excitation pulse.
