We propose the n-type 3C-SiC with Pt nanoparticles (Pt NPs) as photo-anode for
photoelectrochemical hydrogen (H2) generation. We found that band-edge structure of 3C-SiC is
suitable for H2 generation, and the property can be optimized by dopant (nitrogen) concentration in
3C-SiC. We also confirmed that Pt NPs enhance photoelectrochemical properties showing
0.2%–0.8% higher Incident Photon-to-Current Efficiency than bare 3C-SiC in visible wavelength
despite diminished light absorption. Solar-conversion efficiency increases approximately
6.3 times, and H2 production is improved by 6.5 times with 33% of Faradaic efficiency.
Lastly, 3C-SiC surface corrosion is effectively inhibited.
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