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Keywords:

  • H2 evolution;
  • photo-electrochemical cells;
  • silicon nanowire (SiNW) arrays;
  • poly(3;
  • 4-ethylenedioxythiophene) (PEDOT);
  • photocatalysis
Thumbnail image of graphical abstract

A new 1D core-shell strategy is demonstrated for a hydrogen-generation photo-electrochemical cell (PEC). This Si/iodine-doped poly(3,4-ethylenedioxythiophene) (PEDOT) 1D nanocable array shows an encouraging solar-to-chemical energy-conversion efficiency. Coating with iodine-doped PEDOT can effectively enhance the photocatalytic efficiency and stability of SiNW arrays. The PEC model proposed shows a potentially promising structure for H2 production using solar energy.