FEMTOSECOND-SPECTROSCOPIC INVESTIGATIONS ON BITHIOPHENE, TERTHIOPHENE AND TETRATHIOPHENE IN SOLUTION

被引：38

作者：

LAP, DV ^{[1
]}

GREBNER, D ^{[1
]}

RENTSCH, S ^{[1
]}

NAARMANN, H ^{[1
]}

机构：

[1] BASF AG,PLAST RES LAB,W-6700 LUDWIGSHAFEN,GERMANY

来源：

CHEMICAL PHYSICS LETTERS | 1993年 / 211卷 / 01期

关键词：

D O I：

10.1016/0009-2614(93)80062-T

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：

Thiophene oligomers, nT (n=2, 3 and 4), were studied by femtosecond excite and probe spectroscopy. Solvated nT were excited with 350 fs pulses of 308 nm wavelength and probed between 450 and 750 nm. The emergence of induced fluorescence and absorption bands was observed. These spectra shift to longer wavelengths during a 1000 fs pulse. After this the transient spectra remain stable in form and spectral position; they agree with spectra observed by earlier ps experiments. The fast spectra shift is interpreted as an adjustment of the equilibrium between excited nT and its solvate shell.

引用

页码：135 / 139

页数：5

共 20 条

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