Pulsed Electrodeposition for Copper Nanowires

Vuong, Duc-Thinh; Hoang, Ha-My; Tran, Nguyen-Hung; Kim, Hyun-Chul

doi:10.3390/cryst10030218

Cited by 3 publications

(2 citation statements)

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“…In [20], the process of forming transparent conducting electrodes based on copper nanowires coated with nickel in pulsed modes was carried out. The group showed that different modes of pulsed deposition of nickel over a copper nanowire mesh significantly changed the characteristics of the resulting coating.…”

Section: Literature Review and Problem Statementmentioning

confidence: 99%

Definition of the influence of pulsed deposition modes on the electrochromic properties of Ni(OH)2-polyvinyl alcohol films

Kotok

Кovalenko

2021

EEJET

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In this work, the influence of some types of the pulsed deposition mode of electrochromic films from aqueous solutions of nickel nitrate with the addition of polyvinyl alcohol was investigated. Glass coated with a fluorine-doped tin oxide film was used as the basis for deposition. The deposition of nickel (II) hydroxide – polyvinyl alcohol electrochromic films was carried out in three pulsed modes: –0.2 mA/cm2×5 s, 0 mA/cm2×5 s (10 minutes); –0.5 mA/cm2×2 s, 0 mA/cm2×8 s (10 minutes); –1 mA/cm2×1 s, 0 mA/cm2×9 s. In this case, the amount of electricity used for the formation of thin-film electrodes was the same for all samples. The resulting films showed dramatic differences in electrochemical, optical, and quality characteristics. The sample obtained in the mode of the highest cathode current density and the duration of the no-current condition (1 mA/cm2×1 s, 0 mA/cm2×9 s) had the worst specific capacity and optical characteristics. This sample was characterized by the highest number of coating defects and color non-uniformity as well. The sample, which was obtained at average current densities (–0.5 mA/cm2×2 s, 0 mA/cm2×8 s), had the highest specific characteristics among the electrodes in the series. The coating was uniform and solid. Also, this sample had the greatest stability of the coloration depth value, which varied from 79.1 to 78.1 % (first to fifth cycles). The sample obtained in the mode –0.2 mA/cm2×5 s, 0 mA/cm2×5 s showed moderate specific indicators, however, there were some coating defects. According to the results obtained, a mechanism was proposed that explained the differences in the characteristics of thin-film electrodes formed in different modes. This mechanism consists of changing the time of non-stationary processes and the distribution of the current density with a change in the value of the deposition current density, the duration of the cathode period, and the no-current condition.

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Section: Literature Review and Problem Statementmentioning

confidence: 99%

Definition of the influence of pulsed deposition modes on the electrochromic properties of Ni(OH)2-polyvinyl alcohol films

Kotok

Кovalenko

2021

EEJET

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“…The oxidation of Cu nanowires (NWs) in ambient conditions is a critical issue that has limited the usage of this material to commercial applications. Recently, Vuong et al proposed a Nickel coating process on Cu NWs to overcome this drawback [1]. First, the Cu NWs (55.3 ± 7.1 nm of diameter, over 100 µm of length) were synthesized via a hexadecylamine (HDA)-mediated method, then the pulsed electrode plating technique was used to form the Cu core-Ni shell on the polyethylene terephthalate (PET) film.…”

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confidence: 99%