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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Voronin, Anton S., Nemtsev I. V., Molokeev M. S., Simunin, Mikhail M., Kozlova, Ekaterina A., Markovskaya, Dina V., Lebedev, Denis V., Lopatin, Dmitry S., Khartov, Stanislav V.
Заглавие : Laser-induced chemical liquid-phase deposition plasmonic gold nanoparticles on porous TiO2 fIlm with great photoelectrochemical performance
Место публикации : Appl. Sci. - 2022. - Vol. 12, Is. 1. - Ст.30. - ISSN 2076-3417(eISSN), DOI 10.3390/app12010030
Примечания : Cited References: 35
Предметные рубрики: AU NANOPARTICLES
ELECTRODES
Аннотация: This paper considers the photoelectrochemical characteristics of a composite porous TiO2 thin film with deposited plasmonic gold nanoparticles. The deposition of gold nanoparticles was carried out by the laser-induced chemical liquid-phase deposition (LCLD) method. The structural characteristics of the composite have been studied; it has been shown that the porous TiO2 film has a lattice related to the tetragonal system and is in the anatase phase. Gold nanoparticles form on the surface of a porous TiO2 film. A complex of photoelectrochemical measurements was carried out. It was shown that the deposition of plasmonic gold nanoparticles led to a significant increase in the photocurrent density by ~820%. The proposed concept is aimed at testing the method of forming a uniform layer of plasmonic gold nanoparticles on a porous TiO2 film, studying their photocatalytic properties for further scaling, and obtaining large area Au/TiO2/FTO photoelectrodes, including in the roll-to-roll process.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Krinitsyn D. O., Romanchenko A. S., Vorob'ev S. A., Likhatskii M. N., Karacharov A. A., Krylov A. S., Volochaev M. N., Mikhlin, Yu L.
Заглавие : Synthesizing zinc sulfide films on the gold surface as the sensor for electrochemical quartz crystal microbalance
Коллективы : Russian Scientific FoundationRussian Science Foundation (RSF) [18-17-00135]
Место публикации : Russ. J. Electrochem. - 2021. - Vol. 57, Is. 12. - P.1157-1163. - ISSN 1023-1935, DOI 10.1134/S1023193521120041. - ISSN 1608-3342(eISSN)
Примечания : Cited References: 23. - The study was supported by the Russian Scientific Foundation (grant no. 18-17-00135)
Предметные рубрики: CHEMICAL BATH DEPOSITION
ZNS
SPHALERITE
ELECTRODES
ACTIVATION
Аннотация: A zinc sulfate film is deposited from aqueous solutions of zinc sulfate onto the gold surface with the aim of preparation of a sensor for electrochemical quartz crystal microbalance (EQCM). The kinetics of this process, the particles formed in solution, and the film itself are studied by the methods of electrochemical quartz crystal microbalance, X-ray photoelectron spectroscopy, transmission electron microscopy, atomic force microscopy, optical and Raman spectroscopies, and dynamic light scattering. The effect of the procedure of gold surface preparation, the reagent concentration, and the temperature on the film adhesion, the length of induction period, the kinetics of film growth, and its structure and thickness are studied. It is shown that the film formation proceeds as a result of deposition of sufficiently coarse 200-700 nm colloid particles of sphalerite. It is demonstrated that this sensor can be used in studying the electrochemical reactions of ZnS and the interface phenomena by the methods of EQCM and cyclic voltammetry.
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Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Voronin A. S., Fadeev Y. V., Govorun I. V., Podshivalov I. V., Simunin M. M., Tambasov I. A., Karpova D. V., Smolyarova T. E., Lukyanenko A. V., Karacharov A. A., Nemtsev I. V., Khartov S. V.
Заглавие : Cu-Ag and Ni-Ag meshes based on cracked template as efficient transparent electromagnetic shielding coating with excellent mechanical performance
Коллективы : Russian Foundation for Basic Research projectRussian Foundation for Basic Research (RFBR) [18-38-00852]; Russian FederationRussian Federation [SP-2235.2019.1]
Место публикации : J. Mater. Sci. - 2021. - Vol. 56. Is. 26. - P.14741-14762. - ISSN 0022-2461, DOI 10.1007/s10853-021-06206-4. - ISSN 1573-4803(eISSN)
Примечания : Cited References: 79. - This work was supported by Russian Foundation for Basic Research project «mol_a» № 18-38-00852 and a scholarship from the President of the Russian Federation SP-2235.2019.1. The sputtering Ag seed mesh and physicochemical analysis of materials was carried out on the equipment of Krasnoyarsk Regional Center of Research Equipment of Federal Research Center «Krasnoyarsk Science Center SB RAS»
Предметные рубрики: COPPER NANOWIRES
METALLIC MESH
PLASTIC SUBSTRATE
ELECTRODES
FILMS
Аннотация: Nowadays, the technical advances call for efficient electromagnetic interference (EMI) shielding of transparent devices which may be subject to data theft. We developed Cu–Ag and Ni–Ag meshes on flexible PET substrate for highly efficiency transparent EMI shielding coating. Cu–Ag and Ni–Ag meshes obtained with galvanic deposition of copper and nickel on thin Ag seed mesh which was made by cracked template method. Coefficients S11, S21 and shielding efficiency (SE) were measured for Cu–Ag and Ni–Ag meshes in X-band (8–12 GHz) and K-band (18–26.5 GHz). 90 s copper deposition increase SE from 23.2 to 43.7 dB at 8 GHz with a transparency of 82.2% and a sheet resistance of 0.25 Ω/sq. The achieved maximum SE was 47.6 dB for Cu–Ag mesh with 67.8% transparency and 41.1 dB for Ni–Ag mesh with 77.8% transparency. Cu–Ag and Ni–Ag meshes have high bending and long-term stability. Minimum bend radius is lower than 100 µm. This effect allows to produce different forms of transparent shielding objects, for example, origami method. Our coatings are the leading among all literary solutions in three-dimensional coordinates: of sheet resistance–optical transmittance–cost of produced.
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