Fig. 3: Photoisomerization behavior under UV/visible illumination.
From: Electrical monitoring of photoisomerization of block copolymers intercalated into graphene sheets

UV–visible absorption spectra of aqueous dispersions of (a) PEO113-b-PVBOn and (b) PnGNH under UV irradiation for 90 min (recorded at 0, 5, 10, 20, 30, 60, and 90 min). Molar extinction coefficients at 400 nm as a function of irradiation time for (c) PEO113-b-PVBOn and (d) PnGNH. Relative absorbance [A(t)/A0] of the major peak at 400 nm as a function of irradiation time, where the absorbance A was divided by the initial value A0, for (e) PEO113-b-PVBOn and (f) PnGNH. g Calculated rate constants (with s.d. error bars) for different DPs.