title: Oxazine-1 J-aggregates in polymer nanohybrids.
abstract: In a smart solution-processable luminescent poly(norbornene)/oxazine-1 (Ox1) intercalated fluoromica nanohybrid, the supramolecular organization of the Ox1 dyes can be tuned at the nanoscale level and a deep red emission band switched on by inducing a phase segregation of aligned molecules within the fluoromica layered scaffold. By combining low-temperature photoluminescence and ultrafast pump-probe spectroscopy we prove that the nanoconstrained Ox1 molecules are organized in a J-type packing and we highlight the critical factor that controls such a supramolecular dye arrangement.
authors.affiliation: Istituto per lo Studio delle Macromolecole (ISMAC), CNR, Milano, Italy. u.giovanella@ismac.cnr.it
authors.forename: Umberto
authors.initials: U
authors.lastname: Giovanella
authors.forename: Giuseppe
authors.initials: G
authors.lastname: Leone
authors.forename: Giovanni
authors.initials: G
authors.lastname: Ricci
authors.forename: Tersilla
authors.initials: T
authors.lastname: Virgili
authors.forename: Inma Suarez
authors.initials: IS
authors.lastname: Lopez
authors.forename: Sai Kiran
authors.initials: SK
authors.lastname: Rajendran
authors.forename: Chiara
authors.initials: C
authors.lastname: Botta
mesh_terms: D005456:Fluorescent Dyes / Q000737:chemistry*; D049449:Luminescence; D049329:Nanostructures / Q000737:chemistry*; D010078:Oxazines / Q000737:chemistry*; D010969:Plastics / Q000737:chemistry*; D012996:Solutions; D013057:Spectrum Analysis; D013696:Temperature
chemical_list: D005456:Fluorescent Dyes; D010078:Oxazines; D010969:Plastics; D012996:Solutions; C071464:polynorbornen; C025904:oxazine 1