Effect of the Side Chains and Anode Material on Thermal Stability and Performance of Bulk-Heterojunction Solar Cells Using DPP(TBFu)₂ Derivatives as Donor Materials

Table 1

The first half-wave () oxidation (Ox1) and reduction (Red1) potentials obtained from rotating disk voltammetry recomputed [31] to frontier orbital energy levels. Absorption maxima of 0-0 and 0-1 vibronic subbands of the longest wavelength band (absolute maxima are in bold and relate to molar absorptivities ).

Compound	(ox1) [V]	(red1) [V]	[eV]	[eV]	[eV]	[nm]	[L/mol·cm]
A	0.91	−0.88	−5.26	−3.47	1.79	628, 584	65153
B	1.01	−0.86	−5.36	−3.49	1.87	622, 578	69754
C	0.95	−0.88	−5.30	−3.47	1.83	614, 578	60386

[eV] = (ox1) [V] + 4.35 [32].
[eV] = (red1) [V] + 4.35 [32].
[eV] = − = electrochemical HOMO − LUMO gap.