title: Unique piezochromic fluorescence behavior of dicyanodistyrylbenzene based donor-acceptor-donor triad: mechanically controlled photo-induced electron transfer (eT) in molecular assemblies.
abstract: A novel donor-acceptor-donor triad that exhibits fluorescence on-off switching with high contrast ratio (ca. 10(3) ) in response to a mechanical stimulus in the solid state is reported. This system provides a very unique example of high-contrast fluorescence switching that is driven by a mechanical-force-controlled photo-induced electron transfer (eT) in molecular assemblies.
authors.affiliation: Center for Supramolecular Optoelectronic Materials and WCU Hybrid Materials Program, Department of Materials Science and Engineering, Seoul National University, ENG 445, Seoul 151-744, Korea.
authors.forename: Min Sang
authors.initials: MS
authors.lastname: Kwon
authors.forename: Johannes
authors.initials: J
authors.lastname: Gierschner
authors.forename: Seong-Jun
authors.initials: SJ
authors.lastname: Yoon
authors.forename: Soo Young
authors.initials: SY
authors.lastname: Park
mesh_terms: D002152:Calorimetry, Differential Scanning; D002227:Carbazoles / Q000737:chemistry*; D004579:Electron Transport; D004583:Electrons; D005456:Fluorescent Dyes / Q000737:chemistry*; D009570:Nitriles / Q000737:chemistry*; D013056:Spectrophotometry, Ultraviolet; D013267:Stilbenes / Q000737:chemistry*
chemical_list: D002227:Carbazoles; D005456:Fluorescent Dyes; D009570:Nitriles; D013267:Stilbenes; C412619:1,3-dicyanobenzene