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    Features of Fabrication of Titanium Dioxide Based Coatings for Non-Lithographic Template Electrochemical Synthesis of Micron Metal Particle Arrays

    Year: 2021

    Journal: Gels, Volume 7, DEC

    Authors: Arbenin, Andrey Yu.; Zemtsova, Elena G.; Orekhov, Evgeniy V.; Sokolova, Daria N.; Baburova, Polina I.; Petrov, Alexey A.; Gaishun, Vladimir E.; Smirnov, Vladimir M.

    Keywords: template synthesis; sol-gel; xerogel; thin films; pores; dip coating; electrochemical deposition; metal particles

    This work is devoted to the development of non-lithographic template methods of synthesis. These methods have a significant advantage in terms of structure formation: there is no need to design and produce masks, which greatly simplifies the process, and more of them can work with nonplanar substrates. The purpose of this study was to reveal the conditions for the synthesis of titanium dioxide xerogel films of different topologies as well as to develop a technique for non-lithographic template electrochemical synthesis of micron metal particles arrays and to study the structure of the resulting coatings. The films were deposited on the surface of substrates via dip coating. Specific topology of the films was achieved by template sol-gel synthesis. Their structures were analyzed by SEM and XRD. Template synthesis of metal micro particles were realized by pulsed electrochemical deposition of metals into the perforations of xerogel films. Obtained materials were analyzed by SEM and XRD; the element distribution on the surface was determined by the EDS detector of SEM. Based on the analysis results, we suggest the mechanisms of formation of the xerogel topology and proved the efficiency of pulsed electrodeposition for template synthesis of micron particles arrays.
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