(Invited) Photoelectrochemical Hydrogen Evolution Using Heterostructure of Si with Binary Cobalt SulfiDe or Ternary Cobalt PhosphosulfiDe

Monday, 2 October 2017: 11:50
National Harbor 6 (Gaylord National Resort and Convention Center)
R. S. Liu (Department of Chemistry, National Taiwan University) and S. F. Hu (Department of Physics, National Taiwan Normal University)
Development of a solar water splitting device requires design of a low-cost, efficient, and non-noble metal compound as alternative to noble metals. Here we will demonstrate that binary cobalt sulfide or ternary cobalt phosphosulfide can function as co-catalyst in phototoelectrochemical hydrogen production. We designed a heterostructure of p-Si and binary cobalt sulfide or ternary cobalt phosphosulfide solar-driven hydrogen production. These two types of co-catalysts successively coupled with p-Si can act as a superior photocathode in solar-driven water splitting reaction.