Photocurrent generation from TiN nanostructures by visible light

摘要

We experimentally demonstrate photocurrent generation from a titanium nitride thin film forming an interface to a zinc oxide thin film by the illumination of visible light up to 800 ran in wavelength. The photocurrent is attributed to hot electrons excited in titanium nitride whose excitation is not limited by the bandgap of zinc oxide. Our result paves the way to use titanium nitride instead of metals for phototectors and solar photocatalysis.