Static and Ultrafast Transient Photophysics of Mono- and Dual-Branched Triarylamines
LI Feng-Ming1, MENG Fan-Shun2, FENG Wen-Ke1, WANG Shu-Feng1**, TIAN He2, GONG Qi-Huang1
1State Key Laboratory for Mesoscopic Physics and Department of Physics, Peking University, Beijing 100871 2Labs for Advanced Materials and Institute of Fine Chemicals, East China University of Science and Technology, Shanghai 200237
Static and Ultrafast Transient Photophysics of Mono- and Dual-Branched Triarylamines
LI Feng-Ming1, MENG Fan-Shun2, FENG Wen-Ke1, WANG Shu-Feng1**, TIAN He2, GONG Qi-Huang1
1State Key Laboratory for Mesoscopic Physics and Department of Physics, Peking University, Beijing 100871 2Labs for Advanced Materials and Institute of Fine Chemicals, East China University of Science and Technology, Shanghai 200237
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.
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.
LI Feng-Ming;MENG Fan-Shun;FENG Wen-Ke;WANG Shu-Feng**;TIAN He;GONG Qi-Huang. Static and Ultrafast Transient Photophysics of Mono- and Dual-Branched Triarylamines[J]. 中国物理快报, 2010, 27(6): 68202-068202.
LI Feng-Ming, MENG Fan-Shun, FENG Wen-Ke, WANG Shu-Feng**, TIAN He, GONG Qi-Huang. Static and Ultrafast Transient Photophysics of Mono- and Dual-Branched Triarylamines. Chin. Phys. Lett., 2010, 27(6): 68202-068202.
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2010, Vol. 27 
