Synthesis of Novel Triphenylamine-Based Organic Dyes with Dual Anchors for Efficient Dye-Sensitized Solar Cells

Table 1 Absorption data for sensitizers SM1-5

Sensitizer	Absorption λ_max (nm)	ε (10⁴ M⁻¹ cm⁻¹)	λ_onset (nm)	Practical E_0-0 (eV)
SM1	375, 441	2.69, 5.36	494	2.50
SM2	389, 446	5.58, 7.60	508	2.44
SM3	393, 470	5.68, 7.75	514	2.41
SM4	424, 483	5.73, 7.98	553	2.24
SM5	419, 483	5.57, 9.54	543	2.28