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. 2020 Apr 22;23(5):101091. doi: 10.1016/j.isci.2020.101091

Figure 4.

Figure 4

Molecular Oxygen Acts as Redox Mediator in the Photoexcited P3HT/PB:CytC Electron Transfer

(A) Chronoamperometry measurements in absence of oxygen (see Figure S8 for LSV measurements) on ITO/P3HT/PB and ITO/P3HT/PB:CytC at VOC versus Ag/AgCl (red dashed and green solid traces, respectively) and on ITO/P3HT/PB and ITO/P3HT/PB:CytC at VOC -100 mV versus Ag/AgCl (red and blue solid traces, respectively).

(B) Chronoamperometry decay dynamics fitting (see Table 2 for details).

(C) Absorbance of CytC before (black solid line) and after (green solid line) P3HT photostimulation, in VOC condition.

(D) Absorbance of CytC before (black solid line) and after (blue solid line) P3HT photostimulation, upon external negative bias (VOC– 100 mV versus Ag/AgCl).