title: Tuned red NIR phosphorescence of polyurethane hybrid composites embedding metallic nanoclusters for oxygen sensing.
abstract: Polyurethane nanocomposites with high content of red NIR luminescent transition metal clusters are presented. The gas permeability of the hybrid material is controlled by adjusting the hard/soft segment ratio of the organic matrix structure leading to a drastic and reversible enhancement of cluster luminescence depending on the molecular oxygen concentration in its surrounding atmosphere.
authors: Université de Rennes, 1-CNRS UMR 6226 "Institut des Sciences Chimiques de Rennes", Campus de Beaulieu, CS 74205, 35042 Rennes Cedex, France. yann.molard@univ-rennes1.fr maria.amela-cortes@univ-rennes1.fr.
authors: Maria
authors: M
authors: Amela-Cortes
authors: Serge
authors: S
authors: Paofai
authors: Stéphane
authors: S
authors: Cordier
authors: Hervé
authors: H
authors: Folliot
authors: Yann
authors: Y
authors: Molard
mesh_terms: D007259:Infrared Rays; D049449:Luminescence; D049408:Luminescent Agents / Q000737:chemistry*; D008163:Luminescent Measurements; D015394:Molecular Structure; D008982:Molybdenum / Q000737:chemistry*; D053761:Nanocomposites / Q000737:chemistry*; D009942:Organometallic Compounds / Q000737:chemistry*; D010100:Oxygen / Q000032:analysis*; D011140:Polyurethanes / Q000737:chemistry*
chemical_list: D049408:Luminescent Agents; D009942:Organometallic Compounds; D011140:Polyurethanes; D008982:Molybdenum; D010100:Oxygen