Near-infrared heavy-metal-free SnSe/ZnSe quantum dots for efficient photoelectrochemical hydrogen generation

We synthesized Zn-stabilized SnSe (SnSe/ZnSe) QDs with sizes from 5.7 nm to 10 nm. SnSe/ZnSe QDs were used for an efficient PEC hydrogen evolution. A saturated photocurrent density (J) as high as ∼7 mA cm⁻² was obtained.