%0 Journal Article %T Static and Ultrafast Transient Photophysics of Mono- and Dual-Branched Triarylamines
%A LI Feng-Ming %A MENG Fan-Shun %A FENG Wen-Ke %A WANG Shu-Feng %A TIAN He %A GONG Qi-Huang %A
%J 中国物理快报 %D 2010 %I %X Mono- and dual-branched molecules, {4-2-(4-benzothiazol-2-yl-phenyl)-vinyl]-phenyl}-(4-methoxy-phenyl)-phenyl-amine (BS1) and bis-{4-2- (4-benzothiazol-2-yl-phenyl)-vinyl]-phenyl}-(4-methoxy-phenyl)-phenyl-amine (BS2), are investigated with one- and two-photon static spectroscopy, and the femtosecond fluorescence up-conversion technique. The molecules show branch-based fluorescence emission at low quantum yield. Ultrafast non-radiative decay on a picosecond time scale is found and is attributed to intramolecular charge-transfer bridged by the central triphenylamine. The two-photon absorption cross-sections of BS1 and BS2 are 19.1 and 19.4 GM, respectively. %K 82 %K 53 %K Uv %K 82 %K 53 %K -k
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=47EA7CFDDEBB28E0&jid=E27DA92E19FE279A273627875A70D74D&aid=56E9CFD795C49A5CE3A94042DF1D3710&yid=140ECF96957D60B2&vid=DB817633AA4F79B9&iid=B31275AF3241DB2D&journal_id=0256-307X&journal_name=中国物理快报&referenced_num=0&reference_num=0