Table 2. Summary of the Time Constants for the Different Species Retrieved from WR-TCSPC, TA, and TRIR Compared to Literature Values^a.

solvent	WR-TCPSC/ns	TA (ESA2)/ns	TA (SE)/ns	TRIR (GSB)/ns	lit./ns
1-pentanol		0.185 ± 0.048	0.120 ± 0.019	0.192 ± 0.027
	3.90 ± 0.18	3.87 ± 0.09	3.95 ± 0.05	3.58 ± 0.34	3.9551
DMSO		0.292 ± 0.049	0.292 ± 0.063	0.273 ± 0.038
	4.37 ± 0.20	4.23 ± 0.13	4.28 ± 0.08	4.44 ± 0.21	4.1242
DCM		b0.0089 ± 0.0023	b0.010 ± 0.007	0.059 ± 0.044
	4.65 ± 0.17	4.01 ± 0.08	4.31 ± 0.06	3.92 ± 0.10	4.4851
toluene		0.085 ± 0.0028	0.085 ± 0.0028
	3.90 ± 0.25	3.76 ± 0.088	3.52 ± 0.14
methanol		0.013 ± 0.001	b0.017 ± 0.002
	2.95 ± 0.18	2.87 ± 0.055	3.04 ± 0.05		2.8051

^aThe nanosecond time constant corresponds to the Nile Red fluorescence lifetime; tens to hundreds of picosecond time constants correspond to internal conversion back to S₀.

^bDenotes an exponential rise component arising from spectral shifting away from congested parts of transient spectra.