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Figure 8
(a) QENS and (b) Raman spectra of PEDOT:PSS films at 25°C in dry (grey) and humid (blue) environments (5 and 82%, respectively) and at 50°C in a humid (26%) environment (red). The dynamic structure factors S(q, E) correspond to a momentum transfer of q = 1.25 Å−1. The black diamond and triangle indicate the peaks that refer to the Cα—Cα′ (inter-ring) stretching and symmetric Cα=Cβ—(O) stretching, respectively, while the black sphere indicates the peak at 437 cm−1 as explained in the text. The chemical structure of PEDOT is shown as an inset in panel (b). |
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