ULTRAFAST VIBRATIONAL-RELAXATION IN PHOTOGENERATED S(1) ALPHA-TERTHIOPHENE IN SOLUTION BY FEMTOSECOND TIME-RESOLVED ABSORPTION EMISSION AND PICOSECOND TIME-RESOLVED RAMAN-SPECTROSCOPY

被引：44

作者：

YAMAGUCHI, S

HAMAGUCHI, H

机构：

[1] Molecular Spectroscopy Laboratory, Kanagawa Academy of Science and Technology, Kawasaki, 213, KSP East 301

来源：

CHEMICAL PHYSICS LETTERS | 1994年 / 227卷 / 03期

关键词：

D O I：

10.1016/0009-2614(94)00832-9

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Ultrafast vibrational population redistribution dynamics and subsequent cooling processes have been identified and quantified for photogenerated S1 alpha-terthiophene in solution by using femtosecond time-resolved absorption/emission spectroscopy combined with picosecond time-resolved Raman spectroscopy. The population redistribution among the S1 vibrational levels dominates the dynamics for the first few picoseconds after the photoexcitation. The cooling of the solvent-solute system then takes place in the time scale of a few tens of picoseconds.

引用

页码：255 / 260

页数：6

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