Research Article

DFT/TDDFT and Experimental Studies of Natural Pigments Extracted from Black Tea Waste for DSSC Application

Figure 1

Molecular structure of black tea pigments: (a) theaflavin (TF), (b) theaflavin-3-gallate (T3G), (c) theaflavin-3′-gallate (T3′G), and (d) theaflavin Digallate (TDG).
109843.fig.001a
(a)
109843.fig.001b
(b)
109843.fig.001c
(c)
109843.fig.001d
(d)