In order to study the effect of bromine substituents on the fluorescence properties of polythiophene derivatives and quantitatively tuned the optical properties of polythiophene derivatives,polythiophene (3-decyl thiophene)-co-poly (3-bromothiophene)(P3DT-co-P3BrT) was prepared by chemical oxidation method.The products were characterized by infrared (FT-IR),nuclear magnetic (NMR),X-ray diffraction (XRD) and transmission electron microscope (TEM).The optical properties of P3DT-co-P3BrT were studied by UV-Vis and photoluminescence (PL).The results showed that the bandwidth of P3DT-co-P3BrT was wider,and the bromine substituents on the thiophene ring had a significant effect on the fluorescence intensity and quantum yield of P3DT-co-P3BrT.With the increase of P3BrT content,the fluorescence blue shift of P3DT-co-P3BrT was related to the electron absorption induction effect of bromine and the structure-based D-π-A effect.
Dong Yanmao, Tang Xiaolei, Zhou Yanhui
. Synthesis and photoluminescence property of poly(3-decylthiophene-co-3-bromothiophene)[J]. New Chemical Materials, 2021
, 49(5)
: 154
-158
.
DOI: 10.19817/j.cnki.issn 1006-3536.2021.05.035
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