التفاصيل البيبلوغرافية
| العنوان: |
Femtosecond time-resolved electronic relaxation dynamics in tetrathiafulvalene. |
| المؤلفون: |
Staedter, D., Thiré, N., Polizzi, L., Mairesse, Y., Mayer, P., Blanchet, V. |
| المصدر: |
Journal of Chemical Physics; 2015, Vol. 142 Issue 19, p1-9, 9p, 1 Diagram, 3 Charts, 7 Graphs |
| مصطلحات موضوعية: |
FEMTOSECOND lasers, RELAXATION (Gas dynamics), CHEMICAL relaxation, TETRATHIAFULVALENE, WAVELENGTHS, PHOTOELECTRON spectroscopy |
| مستخلص: |
In the present paper, the ultrafast electronic relaxation of tetrathiafulvalene (TTF) initiated around 4 eV is studied by femtosecond time-resolved velocity-map imaging. The goal is to investigate the broad double structure observed in the absorption spectrum at this energy. By monitoring the transients of the parent cation and its fragments and by varying the pump and the probe wavelengths, two internal conversions and intramolecular vibrational relaxation are detected both on the order of a few hundred of femtoseconds. Photoelectron images permit the assignment of a dark electronic state involved in the relaxation. In addition, the formation of the dimer of TTF has been observed. [ABSTRACT FROM AUTHOR] |
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| قاعدة البيانات: |
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