title: Luminescent photoproducts in UV-irradiated ice.
abstract: This Account describes the near-UV and visible luminescences emitted from crystalline, polycrystalline, and amorphous ices as a result of excitation by UV light. Vibrationally resolved, short-lived luminescence around 340 nm arises from excited O(2) formed by the reaction of two O atoms. Long-lived luminescence around 420 nm is tentatively assigned to a spin-forbidden (4)sigma(-) --> X(2)Pi transition of OH. This Account gives a history of the research into this little-known phenomenon, places it in the context of other spectroscopic studies of gaseous and solid water, and proposes future directions for the work.
authors.affiliation: Department of Chemistry, The University of Western Australia, Nedlands, WA 6907, Australia.
authors.forename: V S
authors.initials: VS
authors.lastname: Langford
authors.forename: A J
authors.initials: AJ
authors.lastname: McKinley
authors.forename: T I
authors.initials: TI
authors.lastname: Quickenden
mesh_terms: D007053:Ice; D008163:Luminescent Measurements; D014466:Ultraviolet Rays
chemical_list: D007053:Ice