Research Article

Photophysical Behavior of Modified Xanthenic Dyes Embedded into Silsesquioxane Hybrid Films: Application in Photooxidation of Organic Molecules

Table 2

Fluorescence lifetimes (τ) measured for Eo, RB, and its derivatives in THF and in the SSO films.

Sampleτ 1 (ns) %τ 2 (ns) %χ2

RB-THF2.63 (100%)1.170

EoY-THF3.91 (100%)1.016

EoB-THF3.63 (100%)1.064

SSO-RB1.97 (79%)6.80 (21%)1.044
SSO-EoY0.26 (14%)3.90 (86%)1.007
SSO-EoB0.84 (16%)3.68 (84%)1.063
SSO-Eo20.07 (5%)3.88 (95%)1.038
SSO-Eo30.16 (22%)4.09 (78%)1.239
SSO-RB32.01 (80%)7.02 (20%)1.081