Photoinduced Ionic to Neutral Phase Transition in TTF-CA Studied by Time-Resolved Infrared Vibrational Spectroscopy

• Authors: Y. Matsubara , T. Yoshida , T. Ishikawa , Y. Okimoto , S. Koshihara , K. Onda
• Languages of publication: EN

Abstracts

EN

We studied the photoinduced ionic to neutral phase transition in tetrathiafulvalene-p-chloranil (TTF-CA) using time-resolved infrared vibrational spectroscopy. By monitoring the charge sensitive b_{1u} ν_{10} band of CA after photoexcitation by a 1.55 eV pulse, we found that the photoinduced N-phase has the same charge of the N-phase in thermal equilibrium and there is no charge variation during the photoinduced phase transition. We also found that the photoinduced N-phase grows through at least two steps over 300 ps.

Keywords

EN

78.30.Jw; 78.47.D-; 78.47.jg

Discipline

• 78.47.jg: Time resolved reflection spectroscopy
• 78.30.Jw: Organic compounds, polymers
• 78.47.D-: Time resolved spectroscopy (>1 psec)

• Publisher: Institute of Physics, Polish Academy of Sciences
• Journal: Acta Physica Polonica A
• Year: 2012
• Volume: 121
• Issue: 2
• Pages: 340-342

Dates

published

2012-02

Contributors

author

Y. Matsubara

• Department of Materials Science, Tokyo Institute of Technology, Megro-ku, Tokyo 152-8551, Japan

author

T. Yoshida

• Department of Materials Science, Tokyo Institute of Technology, Megro-ku, Tokyo 152-8551, Japan

author

T. Ishikawa

• Department of Materials Science, Tokyo Institute of Technology, Megro-ku, Tokyo 152-8551, Japan

author

Y. Okimoto

• Department of Materials Science, Tokyo Institute of Technology, Megro-ku, Tokyo 152-8551, Japan

author

S. Koshihara

• Department of Materials Science, Tokyo Institute of Technology, Megro-ku, Tokyo 152-8551, Japan
• CREST, Japan Science and Technology Agency (JST), Japan

author

K. Onda

• Department of Environ. Chem. and Engineering, Tokyo Institute of Technology, Nagatsuta-Yokohama, 226-8502, Japan

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Identifiers

DOI

10.12693/APhysPolA.121.340