Optical, photo physical parameters and photo stability of 6-Substituted-1, 2, 4-Triazine mono glucosyl derivative to act as a laser dye in various solvents

The optical properties of a visible absorption range6-Substituted-1, 2, 4-Triazine mono glucosyl fluorescent derivative dye, such as absorption spectra, emission spectra in different solvents, were experimentally investigated. As well, some important photo physical parameters such as extinction coefficient (epsilon), cross-sections of the absorption (sigma(a)) and the emission (sigma(e)), quantum yield (Phi(f)), fluorescence lifetime, oscillator strength (f) the dipole moment (mu), decay rate radiative constant (k(r)), energy yield of fluorescence (E-f) and the length of attenuation Lambda (lambda) were assessed. The ground-state (mu(g)) and excited-state (mu(e)) dipole moments by solvatochromic correlations method were reported. The dye amplified spontaneous emission (ASE) of 2 x 10(-4) M with different input pumping energies of a continuous wave blue diode laser (lambda = 450 nm) was studied. Photostability of dye was observed that was decreased to 53% of its initial energy by pumping with 100 mW of diode laser after exposure to 120 min. (C) 2020 Elsevier B.V. All rights reserved.