Fig. 3: PEC performance of optimized photoanodes in water.
a Current density of DCN electrodes under different synthesis conditions: polymer type and concentration, temperature, at +1.23 V vs. RHE with 0.1 M Na2SO4 in water (see Table S2). These values were obtained by subtracting the dark current density from that measured under light irradiation. b Representative linear sweep voltammetry (LSV) curves of DCN and CN electrodes in 0.1 M Na2SO4 with and without light. c UV-visible absorption spectra. d Incident photon-to-electron conversion efficiency (IPCE) plots and white light LED spectrum used for PEC reactions. Values are given as average (n = 5) with standard deviation. e Steady-state photoluminescence (PL) emission spectra acquired upon excitation at 365 nm. f Time-resolved PL decay spectra at 530 nm acquired upon excitation at 375 nm. g Electrochemical impedance spectroscopy (EIS) Nyquist plots of electrodes in the dark. Source data are provided as a source data file.
