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. 2022 Mar 19;15(6):2278. doi: 10.3390/ma15062278

Figure 2.

Figure 2

(a) Absorption spectra of RBY(PF6)2, RuLp(PF6)2, and B1(PF6)4 in neat films (solid lines) and in ACN solution (broken lines)—for colors, see the website. The molar extinction coefficient (ε) of B1(PF6)4 was multiplied by 0.5. The spectral ranges of the MLCT and LC excited states are also indicated; (b) Comparison of absorption spectra in the MLCT(1) range for RBY(PF6)2: in a neat film (thick solid line), in an ACN solution (dotted line), in a PVA matrix at 77 K (dashed line, data taken from [30]), and for RBY in the crystal matrix Zn(bpy)3(BF4)2 at 8 K (thin solid line, data from [12]); (c) Absorption spectrum of a 46 nm−thick RBY(PF6)2 film (squares) with the total fit (solid line) and its Franck–Condon components (dotted lines) in the MLCT(1) range (ν0 = 21.84 kK, Δν = 1.65 kK, w = 2.2 kK and S = 0.7). The background from the lower energy and higher energy states is represented by a dashed line.