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Keywords:

  • Semiconductor;
  • solid-solution;
  • photocatalysis;
  • density functional theory
Thumbnail image of graphical abstract

GaP-ZnS solid solutions and multilayered structures have a tunable direct band gap in the energy range for absorption and emission of visible light. A direct band gap of around 2.0 eV, the optimum for photocatalysis of water splitting, is readily accessible with these systems.