Tuning the solid-state emission of small push-pull dipolar dyes to the far-red through variation of the electron-acceptor group

Abstract : Series of solid-state emitters based on the D-π-A dipolar structure and featuring various electron-donor and electron-acceptor groups were designed, and their spectroscopic properties studied. From weak emission in dilute solutions, intense emissions in aggregated state (AIE) and in the crystalline state were obtained. Analysis in light of crystal structures obtained by X-ray diffraction revealed specific crystal packing and presence of long chain of emitting aggregates. This simple molecular engineering around the D-π-A dipolar structure provides easy access to a wide range of effective solid-state emitters allowing modulation of emission wavelengths up to the near infrared (λem reaching 735 and 768 nm for compound 2f and 3f bearing the strongest electron-withdrawing group).
Complete list of metadatas

Cited literature [32 references]  Display  Hide  Download

https://hal-amu.archives-ouvertes.fr/hal-01856313
Contributor : Sébastien Redon <>
Submitted on : Friday, August 10, 2018 - 3:11:35 PM
Last modification on : Wednesday, February 13, 2019 - 10:06:10 AM
Long-term archiving on : Sunday, November 11, 2018 - 1:27:16 PM

File

Redon-DyesPigments.pdf
Files produced by the author(s)

Identifiers

Citation

Sébastien Redon, Gwenaelle Eucat, Martin Ipuy, Erwann Jeanneau, Isabelle Gautier-Luneau, et al.. Tuning the solid-state emission of small push-pull dipolar dyes to the far-red through variation of the electron-acceptor group. Dyes and Pigments, Elsevier, 2018, 156, pp.116-132. ⟨10.1016/j.dyepig.2018.03.049⟩. ⟨hal-01856313⟩

Share

Metrics

Record views

749

Files downloads

242