This tutorial review provides insights on pulsed laser deposition and methods to tune film growth for highly tailored functionalities.

The need for sustainable, renewable and low-cost approaches is a driving force behind the development of solar-to-H2 conversion technologies.

Oxynitrides have been shown to be promising visible light water splitting photocatalysts, but rapidly degrade under operating conditions. With a custom designed photoelectrochemical cell, we perform operando grazing incidence X-ray...

Perovskite yttrium tantalum oxynitride is theoretically proposed as a promising semiconductor for solar water splitting because of the predicted bandgap and energy positions of band edges. In experiment, however, we show here that depending on processing parameters, yttrium tantalum oxynitrides exist in multiphases, including the desired perovskite YTaON2, defect fluorite YTa(O,N,□)4, and N-doped YTaO4. These multiphases have bandgaps ranging between