Nanotechnology

Tandem

Tantalum

Engineering physics

Photocatalysis

Engineering

Catalysis

Composite material

Chemistry

Metallurgy

Materials science

Nitride

Tantalum nitride

Layer (electronics)

Water splitting

Optoelectronics

Biochemistry

Energy & Environmental Science

A semitransparent Ta 3 N 5 photoanode is designed for efficient and durable solar water splitting. The Ta 3 N 5 -CuInSe 2 tandem device exhibits an initial and stabilized solar-to-hydrogen efficiency of ∼9% (highest for metal oxides/nitrides) and 4%, respectively.

Design of semitransparent tantalum nitride photoanode for efficient and durable solar water splitting