A Study of the Electronic Absorption and Emission Spectra of DBDMA Dye: Solvent Effect, Energy Transfer, and Fluorescence Quenching

Table 4

Fluorescence quantum yield (ɸ_f), photochemical quantum yield (ф_c), and relative polarities of DBDMA in different solvents.

Solvent	ɸf		фc	∆f
	λabs max	λex 449 nm
EtOH	0.83		0.003	0.378
Acetone	0.41		—	0.355
DMSO	0.28		—	0.373
BuOH	0.1		0.003	0.358
DMF	0.34		0.004	0.390
CCl4	0.68		0.005	0.052
Acetonitrile	0.79	0.31	0.003	0.386