Novel heterocycle-based organic molecules with two-photon induced blue fluorescent emission
2003 (English)In: Journal of Materials Chemistry, ISSN 0959-9428, E-ISSN 1364-5501, Vol. 13, no 4, 708-711 p.Article in journal (Refereed) Published
Two-photon absorption and two-photon induced blue emission characteristics of a series of heterocycle-based organic molecules are investigated experimentally and by quantum-chemical computations. The molecules consist of a typical A-pi-A' structure, where heterocycle, styryl and formyl groups are employed as A, pi-conjugated and A' moieties, respectively. Experimental results indicate that significant enhancements in the blue emission efficiency and two-photon absorption cross-sections can be achieved by replacing S and O atoms with an N atom in the heterocycle acceptor moiety, which is also supported by the quantum-chemical computations. Additionally, larger two-photon absorption cross-sections can be obtained by choosing appropriate solvents, as indicated by the computations.
Place, publisher, year, edition, pages
2003. Vol. 13, no 4, 708-711 p.
absorption cross-sections, 2-photon absorption, single-molecule, autofluorescent proteins, excited fluorescence, optically dense, excitation, microscopy, dyes, fluorophores
IdentifiersURN: urn:nbn:se:kth:diva-22339DOI: 10.1039/b300924fISI: 000181670900019OAI: oai:DiVA.org:kth-22339DiVA: diva2:341037
QC 201005252010-08-102010-08-10Bibliographically approved