Vertically aligned nitrogen doped (Sn,Nb)O2 nanotubes - Robust photoanodes for hydrogen generation by photoelectrochemical water splitting

- Nb and N co-doping provides excellent optoelectronic properties for SnO2 NTs.
- The optoelectronic properties of doped SnO2 are studied by first principles study.
- (Sn0.95Nb0.05)O2:N-600 NTs exhibits superior ABPE (4.1%) to date.
- Excellent photoelectrochemical stability of (Sn0.95Nb0.05)O2:N-600 NTs.