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. 2019 Mar 7;10:677–683. doi: 10.3762/bjnano.10.67

Figure 4.

Figure 4

Evolution of the reflectivity spectrum of the PCTE membrane when placing a 50% ethanol solution on it. (a) For the whole characterization range (between 1110 and 2500 nm). (b) Detail of the spectral region between 2200 and 2500 nm.