Issue 16, 2018

Utilizing formation of dye aggregates with aggregation-induced emission characteristics for enhancement of two-photon absorption

Abstract

Femtosecond Z-scan measurements of aggregates of a quadrupolar D-π-D dye, 9,10-bis(N-hexylcarbazol-2-yl-vinyl-2)anthracene (BHCVA), provide direct evidence that aggregation of this AIE (aggregation-induced emission) chromophore leads to a sizeable enhancement of the intrinsic two-photon absorption cross section. Aggregation-induced improvement of nonlinear response is explained by theoretical analysis of electronic structure and geometrical parameters of aggregates.

Graphical abstract: Utilizing formation of dye aggregates with aggregation-induced emission characteristics for enhancement of two-photon absorption

Supplementary files

Article information

Article type
Communication
Submitted
30 nov. 2017
Accepted
19 feb. 2018
First published
19 feb. 2018

J. Mater. Chem. C, 2018,6, 4384-4388

Utilizing formation of dye aggregates with aggregation-induced emission characteristics for enhancement of two-photon absorption

A. Justyniarski, J. K. Zaręba, P. Hańczyc, P. Fita, M. Chołuj, R. Zaleśny and M. Samoć, J. Mater. Chem. C, 2018, 6, 4384 DOI: 10.1039/C7TC05509A

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