Table S1: Comparison of the enhanced PEC performance of PVDF/Cu/PVDF-NaNbO3 photoanode to that of other materials reported in the literature. Sample Photocurrent Ref: Enhancement (%) TiO2/BaTiO3 67 [ 21] (with electrical polarization) Ni(OH)2 decorated ZnO 85 [47] (with piezophototronic effect) ZnO 10 [48] (with piezophototronic effect) Pt doped 107 [49] α-Fe2O3 Sn (nanocorals) 50 [50] α-Fe2O3 PVDF-NaNbO3 147 Present study (with electrical polarization & piezophototronic effect)
Table S1: Comparison of the enhanced PEC performance of PVDF/Cu/PVDF-NaNbO3 photoanode to that of other materials reported in the literature. Sample Photocurrent Enhancement (%) Ref: TiO2/BaTiO3 (with electrical polarization) 67 [ 21] Ni(OH)2 decorated ZnO (with piezophototronic effect) 85 [47] ZnO (with piezophototronic effect) 10 [48] Pt doped α-Fe2O3 107 [49] Sn α-Fe2O3 (nanocorals) 50 [50] PVDF-NaNbO3 (with electrical polarization & piezophototronic effect) 147 Present study