Plasmon-Enhanced Light Absorption Below the Bandgap of Semiconducting SnS Microcubes for Highly Efficient Solar Water Evaporation.

Semiconducting materials show high potential for solar energy harvesting due to their suitable bandgaps, which allow the efficient utilization of light energy larger than their bandgaps. However, the photon energy smaller than their bandgap is almost unused, which significantly limits their efficient applications. Herein, plasmonic Pd/SnS microcubes with abundant Pd nanoparticles attached to the SnS nanosheets are fabricated by an in situ photoreduction method.