. 2020 Nov 20;5(48):31044–31054. doi: 10.1021/acsomega.0c04065

Table 1. Fluorescence Lifetime (τ_av), Fluorescence Quantum Yields (Φ_f), and Radiative (K_r) and Nonradiative Rate Constants (K_nr) of Curcumin in PVAc–Cu_x (x = 1, 5, and 10) Coatings on the Surface of PET Film when Excited at 442 nm.

coatings	τ_av (ns)	Φ_f (%)	K_r × 10⁸ (s^–1)	K_nr × 10⁸ (s^–1)
PVAc–Cu₁	0.89	23	2.58	8.66
PVAc–Cu₅	1.29	28	2.17	5.58
PVAc–Cu₁₀	1.95	31	1.59	3.54

Table 1. Fluorescence Lifetime (τav), Fluorescence Quantum Yields (Φf), and Radiative (Kr) and Nonradiative Rate Constants (Knr) of Curcumin in PVAc–Cux (x = 1, 5, and 10) Coatings on the Surface of PET Film when Excited at 442 nm.