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

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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Bibliographic Details
Main Authors: Ugo Caruso, Barbara Panunzi, Rosita Diana, Simona Concilio, Lucia Sessa, Rafi Shikler, Shiran Nabha, Angela Tuzi, Stefano Piotto
Format: Article
Language:English
Published: MDPI AG 2018-08-01
Series:Molecules
Subjects:
DR/NIR emitter
PLQY
AIE/ACQ
DFT
Online Access:http://www.mdpi.com/1420-3049/23/8/1947
Description
Summary: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.
ISSN:1420-3049

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