Figure 9.

a) Schematic representation of the bandgap energy of InP QDs and Fe₂S₂(CO)₆ catalyst attached inside p‐type Si as well as charge transfers leading to electrochemical reduction of protons to H₂. b) The increase in photocurrent density with increasing bias potentials in steps of 100 mV for electrografted p‐Si loaded with InP and Fe₂S₂(CO)₆ catalyst. The inset shows two light‐dark photocurrent cycles measured at a bias potential of 500 mV. Reproduced with permission.157 Copyright 2014, Royal Society of Chemistry.