Study of electrospray assisted electrophoretic deposition of carbon nanotubes on insulator substrates

Kanakamedala, Kalyan; DeSoto, Jared; Sarkar, Anirban; Race, Theda Daniels

doi:10.1007/s13391-015-5108-8

Cited by 10 publications

(2 citation statements)

References 38 publications

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“…Du et al also seem to have encountered the pore problem of the oxide-covered current collector and tried to achieve better performance by pre-coating nickel as a current collector with CNTs [15]. Kanakamedala et al [16] used an electrospray process to produce a seed layer of CNT on an isolated substrate. Inspired by the literature, a thin and simple carbon coating, but not consisting of CNTs, on the aluminium foil is investigated in the presented work.…”

Section: Introductionmentioning

confidence: 99%

Electrophoretic deposition of carbon nanotubes on aluminium for capacitor application

Schneider

Weiser

Krasmann

et al. 2022

Surface Engineering

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Multiwalled carbon nanotubes (MWCNT) were electrophoretically deposited from an environmentally friendly aqueous solution on aluminium current collectors which were carbon coated by physical vapour deposition. The carbon coating proved to be stable under electrophoretic deposition (EPD) conditions up to EPD voltage of U = 50 V and avoided any undesirable oxidation of the aluminium during the deposition process. The kinetics of the deposition was described and could be easily controlled by the suspension concentration and the deposition time. The deposition rate at U = 50 V is about 0.03 mg cm −2 min −1 . As anodic oxide formation could be prevented the electrical contact to the current collector was improved allowing the surface area to be increased by MWCNT to be used as a doublelayer capacitor. The gravimetric capacitance obtained was about 8 F g −1 .

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Section: Introductionmentioning

confidence: 99%

Electrophoretic deposition of carbon nanotubes on aluminium for capacitor application

Schneider

Weiser

Krasmann

et al. 2022

Surface Engineering

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“…In our previous work, our group has worked to develop a reproducible and scalable (ie, for large area substrates) method of depositing CNT thin film coatings amenable to a variety of substrate species. Thus far, using substrates ranging from patterned metal (aluminum patterned hydrophilic silicon substrates) through functionalized semiconductors (3‐aminopropyl‐triethoxysilane [APTES] functionalized silicon) and insulators (glass), we have been able to successfully deposit CNT films using techniques involving electrospraying and electrophoretic deposition (EPD) 24‐26 . Despite the formation of good quality films, a limiting factor in this earlier work was the necessity of preprocessing steps as described by the very aforementioned coating methods themselves, that is—thermal evaporation of a thin Al film onto the bare silicon, APTES treatment of bare silicon substrates, and an electro‐sprayed conductive CNT thin film (~100 nm) during the electrophoresis process.…”

Section: Introductionmentioning

confidence: 99%

Raman spectroscopic characterization of acid refluxed and surfactant‐assisted dispersed multiwalled carbon nanotubes on surface functionalized substrates

Maulik

Sarkar

Basu

et al. 2020

Micro & Optical Tech Letters

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This communication focuses on the Raman spectroscopic characterization of a voltage-controlled electrospray deposition (VCED) of multiwalled carbon nanotubes (MWCNTs) dispersed from acid refluxed and SDBS (sodium dodecyl benzene sulfonate) assisted carbon nanotube (CNT) dispersion techniques. This versatile method resulted in the direct deposition of CNT films on the surface functionalized target substrates, that is-APTES (3-aminopropyl-triethoxysilane) treated metal (aluminum foil), semiconducting (bare Si), and insulators (microscopy grade glass, silicon dioxide, and polymethyl methacrylate or PMMA)-used in this study. During the voltage-controlled deposition process itself, the spray area and thickness of the MWCNT films on a substrate can be easily manipulated. In this work, CNT thin films of 40-70 nm to 3-7 μm were produced as a function of deposition time, with excellent packing density and surface coverage. The precise thickness control of the CNT deposits on each target substrate was achieved by meticulously calibrating the mechanics of the voltagecontrolled spray system, for example, inter-electrode distance between the target surface and the nozzle, electric field, and flow rate of the CNT solution feed, in addition to the concentration of the CNT solution and the deposition time. These overall experimental results bode well for use of this technique in a wider range of applications where CNTs films with controlled thicknesses are required.

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Recent Developments in the Electrophoretic Deposition of Carbon Nanomaterials

et al. 2021

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Study of electrospray assisted electrophoretic deposition of carbon nanotubes on insulator substrates

Cited by 10 publications

References 38 publications

Electrophoretic deposition of carbon nanotubes on aluminium for capacitor application

Electrophoretic deposition of carbon nanotubes on aluminium for capacitor application

Raman spectroscopic characterization of acid refluxed and surfactant‐assisted dispersed multiwalled carbon nanotubes on surface functionalized substrates

Recent Developments in the Electrophoretic Deposition of Carbon Nanomaterials

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