| Texto completo | |
| Autor(es): |
Koelmel, Dominik K.
[1]
;
Hoerner, Anna
[2, 1, 3]
;
Castaneda, Juan A.
[2]
;
Ferencz, Julio A. P.
[2]
;
Bihlmeier, Angela
[4]
;
Nieger, Martin
[5]
;
Braese, Stefan
[6, 1]
;
Padilha, Lazaro A.
[2]
Número total de Autores: 8
|
| Afiliação do(s) autor(es): | [1] Karlsruhe Inst Technol, Inst Organ Chem, D-76131 Karlsruhe - Germany
[2] Univ Estadual Campinas, Inst Fis Gleb Wataghin, CP 6165, BR-13083970 Campinas, SP - Brazil
[3] Karlsruhe Inst Technol, Light Technol Inst, D-76131 Karlsruhe - Germany
[4] Karlsruhe Inst Technol, Inst Phys Chem, D-76131 Karlsruhe - Germany
[5] Univ Helsinki, Inorgan Chem Lab, POB 55, FIN-00014 Helsinki - Finland
[6] Karlsruhe Inst Technol, Inst Toxicol & Genet, D-76344 Eggenstein Leopoldshafen - Germany
Número total de Afiliações: 6
|
| Tipo de documento: | Artigo Científico |
| Fonte: | Journal of Physical Chemistry C; v. 120, n. 8, p. 4538-4545, MAR 3 2016. |
| Citações Web of Science: | 15 |
| Resumo | |
A series of fluoroalkyl-labeled BODIPY dyes have been synthesized with different substituents on the 2- and 6-positions and investigated in terms of their spectroscopic properties. The dyes were decorated with aryl, alkenyl, and alkynyl substituents, respectively. Those substituents are able to expend the dyes' delocalized pi-electron system to different extents. Detailed linear and nonlinear optical spectroscopy methods as well as quantum-chemical calculations have been employed to verify the influence of those different substituents on the electronic distribution and, ultimately, on the molecules' optical properties. From the nonlinear optical measurements, we find that the substituents highly influence the excited-state absorption properties, which could be tuned in wavelength by similar to 100 nm and in magnitude by over 1 order of magnitude, reaching peak values close to 10(-15) cm(2) for one of the alkynyl-containing dyes. (AU) | |
| Processo FAPESP: | 13/16911-2 - Espectroscopia avançada em novos nanomateriais |
| Beneficiário: | Lázaro Aurélio Padilha Junior |
| Modalidade de apoio: | Auxílio à Pesquisa - Jovens Pesquisadores |