title: GaP-ZnS solid solutions: Semiconductors for efficient visible light absorption and emission.
abstract: GaP-ZnS solid solutions and multilayered structures have a tunable direct band gap in the energy range for absorption and emission of visible light. A direct band gap of around 2.0 eV, the optimum for photocatalysis of water splitting, is readily accessible with these systems.
authors.affiliation: School of Chemistry, University of Bristol, Bristol, BS8 1TS, United Kingdom. judy.hart@bristol.ac.uk.
authors.forename: Judy N
authors.initials: JN
authors.lastname: Hart
authors.forename: Neil L
authors.initials: NL
authors.lastname: Allan
keywords: Semiconductor; density functional theory; photocatalysis; solid-solution