Photophysical and Electrochemical Properties of Donor–Acceptor Conjugated Oligomers Based on 3,4-Ethylenedioxythiophene and Deficient Rings
The photophysical and electrochemical properties of four novel donor–accepter (D–A) conjugated oligomers a–d based on 3,4-ethylenedioxythiophene (EDOT) and electrondeficient heterocycle rings were investigated. The UV-vis absorption spectroscopy, fluorescence emission spectroscopy and cyclic voltammertry studies suggest that the oligomers are expected to provide enhanced chargetransporting properties for the development of efficient electroluminescent materials. Furthermore, the third-order nonlinear optical (NLO) measurements made by Z-scan technique indicate that they have good third-order NLO response and are desired materias for fabricating nonlinear photonic devices. In the solid state of these oligomers, a strong tendency of self-assembled structure was also revealed by X-ray diffraction (XRD) patterns in powder.
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Document Type: Research Article
Publication date: 01 December 2011
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