Ultrafast ring-closing reaction dynamics of a photochromic furan-based difurylethene
| Autor: | Yevhen Shynkarenko, Alina Khodko, O. Mamuta, Dmytro Sysoiev, N. M. Kachalova, Thomas Huhn, S. V. Snegir, V. M. Khomenko, Oleksiy L. Kapitanchuk |
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| Rok vydání: | 2017 |
| Předmět: |
Absorption spectroscopy
Physics::Optics General Physics and Astronomy 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Photochemistry 01 natural sciences 0104 chemical sciences chemistry.chemical_compound Photochromism chemistry Reaction dynamics Furan ddc:540 Femtosecond Ultrafast laser spectroscopy Physics::Atomic and Molecular Clusters Thiophene Density functional theory Physics::Chemical Physics Physical and Theoretical Chemistry 0210 nano-technology |
| Zdroj: | Chemical Physics Letters. 669:156-160 |
| ISSN: | 0009-2614 |
| Popis: | The ultrafast photoinduced ring-closing dynamics of a furan-based difurylethene (YnPhT) has been investigated by femtosecond transient absorption spectroscopy. We performed time-dependent density functional theory (TD-DFT) calculations to explain the experimental results in detail. The sub-picosecond time scale of the ring-closing reaction is comparable with thiophene-based analogues, but oxygen atoms at the photochromic core can avoid adverse interaction between switches and metal contacts in further applications. This observation proves that furan-based diarylethenes are potential optoelectronic elements with an ultrafast optical response. |
| Databáze: | OpenAIRE |
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