Optical properties of π-conjugated donor-acceptor systems with controlled hyperpolarizability
Vernadsky National Library of Ukraine
Переглянути архів Інформація| Поле | Співвідношення | |
| Title |
Optical properties of π-conjugated donor-acceptor systems with controlled hyperpolarizability
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| Creator |
Piryatinski, Yu.P.
Sevryukova, M.M. |
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| Description |
For supramolecular compounds with donor and acceptor fragments, coupled with each other by the π-conjugated methyn chain, it was ascertained an influence of Cl and Br atoms on the π-conjugation and charge transfer in them in molecular and aggregate states. Compound, which contains Br atom, crystallizes into a noncentrosymmetric polar structure and under infrared (1064 nm) laser excitation it is observed the second harmonic generation and intense up-conversion photoluminescence in the visible spectral region. For compounds containing Cl atom, when passing into a crystalline state, only up-conversion photoluminescence is observed, which can be considered as twophoton excited. Possible mechanisms of intramolecular charge transfer and collective interactions in investigated molecular structures under one- and two-photon excitation are considered. |
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| Date |
2017-06-03T04:42:43Z
2017-06-03T04:42:43Z 2008 |
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| Type |
Article
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| Identifier |
Optical properties of π-conjugated donor-acceptor systems with controlled hyperpolarizability / Yu.P. Piryatinski, М.М. Sevryukova // Semiconductor Physics Quantum Electronics & Optoelectronics. — 2008. — Т. 11, № 3. — С. 292-302. — Бібліогр.: 21 назв. — англ.
1560-8034 PACS 71.35.-y, 78.55.-m http://dspace.nbuv.gov.ua/handle/123456789/119048 |
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| Language |
en
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| Relation |
Semiconductor Physics Quantum Electronics & Optoelectronics
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| Publisher |
Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України
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