Table 1.
Decay times of synthetic eumelanin suspensions in DMSO-methanol and HPLC-grade water, both excited at 2.254 eV and obtained from the fitting procedure for the dynamics reported in Figs. 6(A), 6(B) and 6(C) and Figs. 7(A), 7(B) and 7(C), respectively.
| fitting routine parameters
| |||
|---|---|---|---|
| solvent | probe energy (eV) | τ1 (ps) | τ2 (ps) |
|
|
|
|
|
| DMSO-methanol | 1.741 | 1.5 ± 0.2 | 10.1 ± 0.9 |
| 1.823 | 1.6 ± 0.3 | 16.9 ± 1.4 | |
| 2.460 | 1.5 ± 0.1 | 15.3 ± 1.2 | |
|
|
|
|
|
| HPLC-grade water | 1.741 | 1.3 ± 0.4 | 15.2 ± 0.8 |
| 1.823 | 1.3 ± 0.2 | 13.7 ± 1.1 | |
| 2.460 | 1.5 ± 0.3 | 10.4 ± 1.4 | |