AIE/ACQ Effects in Two DR/NIR Emitters: A Structural and DFT Comparative Analysis

The effects of aggregation-induced emission (AIE) and of aggregation caused quenching (ACQ) were observed and discussed on two solid materials based on a phenylenevinylene (PV) and a dicyano-PV structure. The brightest emitter in solid films shows a high fluorescence quantum yield in the deep red/ne...

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Detalles Bibliográficos
Autores principales: Caruso, Ugo, Panunzi, Barbara, Diana, Rosita, Concilio, Simona, Sessa, Lucia, Shikler, Rafi, Nabha, Shiran, Tuzi, Angela, Piotto, Stefano
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2018
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6222639/
https://www.ncbi.nlm.nih.gov/pubmed/30081544
http://dx.doi.org/10.3390/molecules23081947
Descripción
Sumario:The effects of aggregation-induced emission (AIE) and of aggregation caused quenching (ACQ) were observed and discussed on two solid materials based on a phenylenevinylene (PV) and a dicyano-PV structure. The brightest emitter in solid films shows a high fluorescence quantum yield in the deep red/near IR (DR/NIR) region (75%). The spectroscopic properties of the two crystalline solids have been described and compared in terms of crystallographic data and time dependent DFT analysis. The influence of the cyano-substituents on AIE/ACQ mechanism activation was discussed.

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