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Preparation and the investigation of its electrochemical and photoluminescent characteristics of organic-inorganic hybrid multilayers containing europium-substituted heteropolytungstate |
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| Authors: | Zhai Shengyong Chen Yaguang Wang Shubin Jiang Junguang Dong Shaojun Li Jinghong |
| Institution: | a State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China b Department of Chemistry, Northeast Normal University, Changchun 130024, China c Key Laboratory of Rare Earth Chemistry and Physics, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun, Jilin 130022, China |
| Abstract: | Photoluminescent multilayers were fabricated by layer-by-layer deposition between europium-substituted heteropolytungstate K13Eu(SiW11O39)2]·28H2O (denoted ESW) and a cationic polymer of quaternized poly(4-vinylpyridine) partially complexed with osmium bis(2,2′-bipyridine) (denoted as QPVP-Os) on glassy carbon and quartz substrates. The resulting photoluminescent organic-inorganic hybrid multilayers were characterized by electrochemical impedance spectroscopy, UV-Vis absorption spectrometry, cyclic voltammetry and photoluminescence spectra. Electrochemical impedance spectroscopy, UV-Vis absorption spectrometry and cyclic voltammetry results demonstrated that the multilayers were regular growth each layer adsorption. The photoluminescent properties of the films at room temperature were investigated to show the characteristic Eu3+ emission pattern of 5D0→7Fj. |
| Keywords: | Europium Heteropolytungstate Organic-inorganic hybrid multilayers Photoluminescent Electrochemistry |
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