Electrical engineering

Nanotechnology

Organic chemistry

Photocatalysis

Nanocomposite

Engineering

Catalysis

Halide

Inorganic chemistry

Hybrid material

Chemistry

Renewable energy

Materials science

Water splitting

ACS Energy Letters

Organic–inorganic hybrids, which synergize the merits of organic and inorganic materials, have emerged as a new class of highly versatile functional materials with tailored properties and enhanced energy conversion efficiency. In this Focus Review, state-of-the-art results on organic–inorganic hybrids, used for water splitting and generation of hydrogen as a clean and renewable fuel, are concisely summarized. Two classes of hybrid materials, i.e., organic–inorganic nanocomposites and hybrid halide perovskites, are reviewed and compared for designing photoelectrochemical cells. Furthermore, promising design strategies to enhance the device performance and stability are discussed.

Hybrid Organic–Inorganic Materials and Composites for Photoelectrochemical Water Splitting