Tandem Nanostructures: A Prospective Platform for Photoelectrochemical Water Splitting

A platform for efficient photoelectrochemical (PEC) water splitting must fulfil different requirements: the absorption of solar spectrum should be maximized in use charge carrier generation. To avoid recombination, fast separation carriers is required and energetic positions band structure(s) optimized with respect to reactions. In these respects, constructing tandem nanostructures rationally designed nanostructured units offers a potential opportunity break performance bottleneck imposed by unitary nanostructure. So far, quite few have been designed, fabricated, employed improve efficiency PEC splitting, significant achievements realized. This review focuses on current advances splitting. Firstly, state art applied summarized. Secondly, this field advantages arising employing are outlined. Subsequently, types reviewed, including core-shell photoelectrode, two-photoelectrode cell, plasmon related devices Based this, future perspective proposed.