Gold electroless deposition into poly-3,4-ethylenedioxythiophene films |
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| Authors: | N A Pogulyaichenko So Hui V V Malev V V Kondratiev |
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| Institution: | (1) Department of Chemistry, Saint Petersburg University, Petrodvoretz, Universitetsky pr.26, 198504 Saint Petersburg, Russian Federation;(2) State Key Laboratory on Integrated Optoelectronics, College of Electronic Science and Engineering, Jilin University, 2699 Qianjin Street, Changchun, 130012, People’s Republic of China;(3) Institute of Cytology, Russian Academy of Sciences, 194064, Tikhoretsky pr. 4, Saint Petersburg, Russian Federation |
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| Abstract: | By electroless deposition of gold into poly-3,4-ethylenedioxythiophene (PEDOT) films, the composite films (PEDOT-Au) are synthesized.
Their electrochemical properties are studied by cyclic voltammetric (CVA) method. It is shown that in contrast to the original
PEDOT film, the CVA curves of composite PEDOT-Au films measured in the presence of chloride ions reveal additional redox peaks
associated with the presence of gold particles. The loading of metal gold particles by its chemical deposition into the polymer
film is quantitatively assessed using quartz crystal microbalance method. The film mass is shown to depend on the time of
gold loading and its original concentration in solution. The gold particles are shown to be oxidized by a reaction of the
first order with respect to chloride ions. Based on the results of voltammetric and microbalance methods, the formation of
a poorly soluble gold oxidation product Au(I)Cl in chloride-containing solutions was inferred. |
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