Fabrication of Carbon Nanotubes on Inter-Digitated Metal Electrode for Switchable Nanophotonic Devices

Dai, Qing; Butt, Haider; Rajasekharan, Ranjith; Wilkinson, Timothy D.; Amaratunga, G.A.J.

doi:10.2528/pier12022603

Cited by 4 publications

(3 citation statements)

References 13 publications

(18 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…It depends on time (experiment duration) as well as on the geometrical arrangement of microelectrodes in the array. Interdigitated microelectrode arrays (IDA) have more advantageous geometry in comparison to microband electrodes [ 29 – 31 ]. Chronoamperograms of various types of IDA have been measured using ferrocene in acetonitrile solution as test system.…”

Section: Theory Of Mass Transport At Microelectrode Arraysmentioning

confidence: 99%

Microelectrode Arrays with Overlapped Diffusion Layers as Electroanalytical Detectors: Theory and Basic Applications

Tomčı́k

2013

Sensors

View full text Add to dashboard Cite

This contribution contains a survey of basic literature dealing with arrays of microelectrodes with overlapping diffusion layers as prospective tools in contemporary electrochemistry. Photolithographic thin layer technology allows the fabrication of sensors of micrometric dimensions separated with a very small gap. This fact allows the diffusion layers of single microelectrodes to overlap as members of the array. Various basic types of microelectrode arrays with interacting diffusion layers are described and their analytical abilities are accented. Theoretical approaches to diffusion layer overlapping and the consequences of close constitution effects such as collection efficiency and redox cycling are discussed. Examples of basis applications in electroanalytical chemistry such as amperometric detectors in HPLC and substitutional stripping voltammetry are also given.

show abstract

Section: Theory Of Mass Transport At Microelectrode Arraysmentioning

confidence: 99%

Microelectrode Arrays with Overlapped Diffusion Layers as Electroanalytical Detectors: Theory and Basic Applications

Tomčı́k

2013

Sensors

View full text Add to dashboard Cite

show abstract

“…From the literature review, a potential solution is by using a combined dielectric lossy base layer with RH-PMA as the final structure to enhance its microwave absorption in the lower frequencies. This base layer can be fabricated using carbon-based materials such as carbon nanotubes (CNTs), graphite, and graphene due to their unique material properties such as conductivity, dielectric, physical, and mechanical properties [15,21]. For instance, CNTs offer favourable EM characteristics such as good microwave absorption and high-electrical conductivity [22][23][24].…”

Section: Introductionmentioning

confidence: 99%

Enhanced microwave absorption of rice husk‐based pyramidal microwave absorber with different lossy base layer

Lee

Soh

You

et al. 2020

IET Microwaves, Antennas & Propagation

View full text Add to dashboard Cite

The size of pyramidal microwave absorbers (PMA) is one of the main considerations for their selection for use in anechoic chambers. In this work, a new type of PMA is introduced, with rice husk (RH) as its filler. Meanwhile, a lossy base layer is also introduced in the PMA using a combined RH and carbon nanotube (CNT) composite. To do so, the dielectric properties of the RH‐CNT composite are first investigated from 2–18 GHz by using a dielectric probe. Next, the microwave absorption properties of the PMA were investigated in terms of different height of the pyramidal structure and base layer. The free‐space method was used to measure the microwave absorption of PMA at oblique incident angles of 0° to 60°, respectively. Results indicated good microwave absorption characteristics in the 2–6 GHz with a height of 11.5 cm the PMA structure, and 1 cm thickness of the base layer. The lossy base layer is found to increase the bandwidth of the absorber and improve the microwave absorption of PMA in the lower GHz frequencies. Further investigations concluded that the microwave absorption performance of the PMA is dependent on its dielectric properties, size and base layer.

show abstract

“…The integration of separated clusters happen when the concentration of nanotubes approaches a certain critical value. As a result in the system spreading (infinite) cluster is formed, which leads to appearance of the electric contacts between external electrodes in such a compound [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16]. Experimental studies [1] have shown that the conductivity in nanotube polymeric and ceramic matrix materials follows a percolation-like behavior.…”

Section: Introductionmentioning

confidence: 99%

The Optimization at Studying of Electrical Conductivity in the Dielectric Nanocomposites With Disordered Nanotubes

Burlak¹,

Medina-Ángel²

2018

PIER Letters

View full text Add to dashboard Cite

Abstract-We study the electrical conductivity of a three-dimensional (3D) nanocomposite with incorporated random carbon nanotubes (CNT). A large length of the remote nanotubes generates a lot of intersections that induce a rather small percolating threshold of the global conductivity in this medium. We simulate such a system by random cylinders placed in a percolating parallelepiped with the use of Monte Carlo method. The conductivity of such a structure is associated with the critical phenomena, where the main transition parameter is defined by the value of the percolation threshold. We calculate the minimal percolating threshold and determine the functional form of the conductivity by the global optimization technique. Such an approach allows studying the details of the electrical conductivity in nanocomposites even at significant level of the percolating fluctuations.

show abstract

Fabrication of Carbon Nanotubes on Inter-Digitated Metal Electrode for Switchable Nanophotonic Devices

Cited by 4 publications

References 13 publications

Microelectrode Arrays with Overlapped Diffusion Layers as Electroanalytical Detectors: Theory and Basic Applications

Microelectrode Arrays with Overlapped Diffusion Layers as Electroanalytical Detectors: Theory and Basic Applications

Enhanced microwave absorption of rice husk‐based pyramidal microwave absorber with different lossy base layer

The Optimization at Studying of Electrical Conductivity in the Dielectric Nanocomposites With Disordered Nanotubes

Contact Info

Product

Resources

About