Tailoring the nonlinear absorption of fluorescent dyes by substitution at a boron center
| Autor: | Katarzyna C. Nawrot, Denis Jacquemin, Elizaveta F. Petrusevich, Beata Jȩdrzejewska, Marcin Nyk, Robert Zaleśny, Judyta Zielak, Josep M. Luis, Bartłomiej Paszkiewicz, Borys Ośmiałowski |
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| Přispěvatelé: | Agencia Estatal de Investigación |
| Rok vydání: | 2021 |
| Předmět: |
Photons
Materials science Photon Absorption cross section chemistry.chemical_element Quantum yield General Chemistry Photochemistry Fluorescence Absorció Fluorescence spectroscopy Fotons Absorption chemistry Espectroscòpia de fluorescència Materials Chemistry Molecule Boron Absorption (electromagnetic radiation) |
| Zdroj: | © Journal of materials chemistry C, 2021, vol. 9, núm. 19, p. 6225 Articles publicats (D-Q) Ośmiałowski, Borys Petrusevich, Elizaveta F. Nawrot, Katarzyna C. Paszkiewicz, Bartłomiej K. Nyk, Marcin Zielak, Judyta Jędrzejewska, Beata Luis Luis, Josep Maria Jacquemin, Denis Zaleśny, Robert 2021 Tailoring the nonlinear absorption of fluorescent dyes by substitution at a boron center Journal of materials chemistry. C 99 19 6225 DUGiDocs – Universitat de Girona instname |
| ISSN: | 2050-7534 2050-7526 |
| DOI: | 10.1039/d1tc00062d |
| Popis: | The tuning of the spectroscopic signatures of boron-carrying fluorescent dyes is achieved by subtle chemical modifications. In more detail, we propose a new series of compounds incorporating up to three electron-donating moieties around the central accepting core, using various positions for the donating moieties, including the central boron atom. For all dyes, a thorough experimental and computational investigation of the absorption and emission properties is presented, with specific emphasis on two-photon absorption. Our key finding is that the two-photon absorption cross section, a property vital for bioimaging applications, can be tuned to a large extent (eightfold increase) by changing the topology of the molecule and using an optimal substitution pattern, while mainly conserving the position of the absorption/emission band and fluorescence quantum yield. In addition, these dyes combine significant values of two-photon absorption cross sections (exceeding 500 GM) to significant fluorescence quantum yields - a beneficial feature for several applications J. M. L. is grateful for the financial support from the Spanish MICIN PGC2018-098212-B-C22 and the Catalan DIUE 2017SGR39 |
| Databáze: | OpenAIRE |
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