Organic Dyes Containing Coplanar Dihexyl-Substituted Dithienosilole Groups for Efficient Dye-Sensitised Solar Cells

Table 1

Experimental data of electrochemical and spectroscopic properties of the CL1 dye.

λabs,max (nm)	ε (M^−1 cm^−1)	λem,max (nm)	Eox (V) (versus NHE)	^aE0–0 (eV)	ELUMO (V) (versus NHE)
468	30,000	618	1.28	2.29	−1.01

^aThe LUMO (lowest unoccupied molecular orbital) level of the dye was calculated using equation [47, 48], where E_0–0 is the zeroth–zeroth transition energy of the dye estimated from the intersection between the absorption and emission spectra of the dye (Figure 2).