A dendritic Sb2Se3/In2S3heterojunction nanorod array photocathode decorated with a MoSxcatalyst for efficient solar hydrogen evolution

Sb₂Se₃nanorod arrays were modified with an n-type In₂S₃layer and a layer of molybdenum sulfide catalyst to form p–n heterojunction photocathodes. A photocurrent of −27 mA cm⁻²with a solar-to-hydrogen conversion efficiency of 2.6% can be obtained.