Enhanced visible light-driven activity of TiO2 nanotube array photoanode co-sensitized by “green” AgInS2 photosensitizer and In2S3 buffer layer

AgInS2 visible light responsive sensitizer and the In2S3 buffer layer co-sensitized TiO2 nanotube array photoanodes can efficiently enhance the photoelectrochemical conversion efficiency and the photoelectrochemical cathodic protection performance.252