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. 2015 Mar 30;5:9483. doi: 10.1038/srep09483

Figure 3. Differential absorption (ΔOD) spectra at 10 ps of F8T2/PC71BM blend film and differential absorption (ΔODEC) spectrum of electrochemically oxidized F8T2 neat film.

Figure 3

In ΔOD, the excitation photon energy and pulse energy are 3.1 eV and 27 μJ/cm2, respectively. In ΔODEC, the hole-doing level (n) is 0.55 nm−2.