title: Spectroscopic investigations of a novel tricyanofuran dye for nonlinear optics.
abstract: A novel tricyanofuran dye was synthesized and the dye-in-polymer films were fabricated by spin-coating process. The spectroscopic properties of the dye in the solutions and polymer films were investigated by the absorption spectra and fluorescence emission spectra. It is found that the absorption and fluorescence maxima are largely red-shifted along with the increase of the solvent polarity. And the low values of fluorescence quantum yield in higher polarity solvents suggest the presence of twisted intramolecular charge transfer states of the dye. Moreover, the second order polarizability value of the novel dye was estimated based on the quantum-mechanical two-level model.
authors.affiliation: State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, Chengdu 610054, China.
authors.forename: Likun
authors.initials: L
authors.lastname: Han
authors.forename: Yadong
authors.initials: Y
authors.lastname: Jiang
authors.forename: Wei
authors.initials: W
authors.lastname: Li
authors.forename: Yuanxun
authors.initials: Y
authors.lastname: Li
authors.forename: Peng
authors.initials: P
authors.lastname: Hao
mesh_terms: D004396:Coloring Agents / Q000494:pharmacology; D004583:Electrons; D005456:Fluorescent Dyes / Q000737:chemistry / Q000494:pharmacology*; D005663:Furans / Q000737:chemistry / Q000494:pharmacology*; D008956:Models, Chemical; D015233:Models, Statistical; D009570:Nitriles / Q000737:chemistry / Q000494:pharmacology*; D055095:Optics and Photonics; D011108:Polymers / Q000737:chemistry; D019904:Polymethyl Methacrylate / Q000737:chemistry; D011789:Quantum Theory; D012997:Solvents / Q000737:chemistry; D013050:Spectrometry, Fluorescence / Q000379:methods; D013053:Spectrophotometry / Q000379:methods*; D013696:Temperature
chemical_list: D004396:Coloring Agents; D005456:Fluorescent Dyes; D005663:Furans; D009570:Nitriles; D011108:Polymers; D012997:Solvents; C533117:tricyanofuran; D019904:Polymethyl Methacrylate