四苯基卟啉等分子的超快弛豫过程研究  

Study of the Ultrafast Processes of TPP, BuPc and NtBuPc

作　　者：衷庆华[1] 王朝晖[1] 朱起鹤[1] 孔繁敖[1] 

机构地区：[1]中国科学院化学研究所分子反应动力学国家重点实验室,北京100080

出　　处：《物理化学学报》1996年第3期193-195,共3页Acta Physico-Chimica Sinica

摘　　要：The ultrafast processes of tetra-phenyl-porphyrin(TPP), tetra-t-butyl-phthalocyanine(BuPc) and nitro-tri-t-butyl-phthalocyanine (NtBuPc) have been inves-tigated using the femtosecond time-resolved fluorescence depletion method. A sharp peakof the fluorescence depletion with delay time has been observed both for TPP and BuPc.An ultrafast two-photon absorption process has been proposed to explain the sharp peakobserved. A long-lived fluorescence depletion has also been observed. It is causing by thestimulated-emission-pumping process produced by the intense probe laser pulses.The ultrafast processes of tetra-phenyl-porphyrin(TPP), tetra-t-butyl-phthalocyanine(BuPc) and nitro-tri-t-butyl-phthalocyanine (NtBuPc) have been inves-tigated using the femtosecond time-resolved fluorescence depletion method. A sharp peakof the fluorescence depletion with delay time has been observed both for TPP and BuPc.An ultrafast two-photon absorption process has been proposed to explain the sharp peakobserved. A long-lived fluorescence depletion has also been observed. It is causing by thestimulated-emission-pumping process produced by the intense probe laser pulses.

关 键 词：荧光凹陷 四苯基卟啉 丁基酞菁 驰豫过程 

分 类 号：O626.13[理学—有机化学]