Low temperature electron transport spectroscopy of mechanically templated carbon nanotube single electron transistors

Stokes, Paul; Islam, Muhammad R.; Khondaker, Saiful I.

doi:10.1063/1.4819803

Cited by 3 publications

(3 citation statements)

References 48 publications

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“…In the Local-gate configuration, the gate is fabricated on the top of the bridged CNT (local Top-Gated (TG)) or below the CNT (local Back-Gated (BG)), as shown in figure 15(c) [260,261]. Figure 15(d) shows an individual SWCNT bridged over the local gate across the drain/source terminals by DEP to form a CNT-based single electron transistor (SET) [201]. CNTFET can also be classified according to their doping distribution and operation mode to Schottky-barrier CNTFET (SB-CNTFET) [261], partially-gated CNTFET (PG-CNTFET) [262], and conventional CNTFET (C-CNTFET) [263].…”

Section: Cnt-based Transistorsmentioning

confidence: 99%

Dielectrophoretic alignment of carbon nanotubes: theory, applications, and future

2023

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Carbon nanotubes (CNTs) are nominated to be the successor of several semiconductors and metals due to their unique physical and chemical properties. It has been concerning that the anisotropic and low controllability of CNTs impedes their adoption in commercial applications. Dielectrophoresis (DEP) is known as the electrokinetics motion of polarizable nanoparticles under the influence of non-uniform electric fields. The uniqueness of this phenomenon allows DEP to be employed as a novel method to align, assemble, separate, and manipulate CNTs suspended in liquid mediums. This article begins with a brief overview of CNT structure and production, with the emphasize on their electrical properties and response to electric fields. The DEP phenomenon as a CNT alignment method is demonstrated and graphically discussed, along with its theory, procedure, and parameters. We also discussed the side forces that arise in DEP systems and how they negatively or positively affect the CNT alignment. The article concludes with a brief review of CNT-based devices fabricated using DEP, as well as the method’s limitations and future prospects. 

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Section: Cnt-based Transistorsmentioning

confidence: 99%

Dielectrophoretic alignment of carbon nanotubes: theory, applications, and future

2023

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“…Recently, nanostructured materials have gained significant research attention as filler materials because of possessing unique and promising physical, chemical, structural, and mechanical characteristics [21,22,23]. Among the available alternatives, single wall carbon nanotube (SWCNT), rolled up cylinder of a single layer of graphene, has considered as a popular building block for the synthesis of bioinspired polymer-based nanocomposites because of their unique electronic properties, high thermal conductivity together with extraordinary mechanical strength and flexibility [24,25,26].…”

Section: Introductionmentioning

confidence: 99%

Bio-inspired gelatin/single-walled carbon nanotube nanocomposite for transient electrochemical energy storage: An approach towards eco-friendly and sustainable energy system

Alam

Ahmad

Islam

2021

Heliyon

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Wide-scale production of non-biodegradable e-waste from electrical appliances are causing great harm to the environment. The use of bio-polymer based nanomaterials may offer a promising approach for the fabrication of eco-friendly sustainable devices. In this work, gelatin/single walled carbon nanotube (Gel/SWCNT) nanocomposites were prepared by a simple and economic aqueous casting method. The effect of SWCNT on the structural, surface-morphological, electrical, and electrochemical properties of the nanocomposite was studied. Fourier transform infrared spectroscopy (FTIR) and field emission scanning electron microscope (FESEM) showed an improved degree of interaction between the SWCNTs and Gel matrix. The surface wettability of the nanocomposites was found to be changed from hydrophilic to hydrophobic in nature due to the incorporation of SWCNTs into the Gel matrix. The incorporation of SWCNTs was also found to reduce the DC resistivity of the nanocomposite by 4 orders of magnitude. SWCNTs also increase the specific capacitance of the nanocomposite from 124 mF/g to 467 mF/g at a current density of 0.3 mA/g. The electrochemical impedance spectroscopy analysis revealed an increase of the pseudo-capacitance increased from 9.4 μF to 31 μF due to the incorporation of SWCNT. The Gel/SWCNT nanocomposite showed cyclic stability with capacitive retention of about 98% of its initial capacitance after completing 2000 charging/discharging cycles at a current density of 100 mA/g. The nanocomposite completely dissolves in water within 12 h, demonstrates it as a promising candidate for transient energy storage applications. The Gel/SWCNT nanocomposite may offer a new route for the synthesis of ecofriendly, biodegradable, and transient devices.

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“…CNT single-electron transistors (CNTSETs) are excellent and attractive devices for obtaining high sensitivity and low power consumption since CNTs have diameters on the nanometer order. [25][26][27][28][29][30][31][32][33][34][35] Thus, many types of CNTSETs were fabricated. They have many potential applications in next-generated devices, such as highly sensitive sensors, memories, and quantum information devices.…”

Section: Introductionmentioning

confidence: 99%

Carbon nanotube single-electron transistors with single-electron charge storages

Seike¹,

Kanai²,

Ohno³

et al. 2015

Jpn. J. Appl. Phys.

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Carbon nanotube single-electron transistors (CNTSETs) with single-electron charge storages were fabricated to detect single-electron charges from a CNT channel to a charge storage. A single-electron charge storage is composed of Au floating dots between tunneling and blocking layers of Al2O3. Electrons were injected into a Au floating dot by sweeping gate voltage, and the Coulomb peak was shifted owing to the effect of electrons inside the Au floating dot. In addition, a staircase relationship between the charging voltages and the peak positions was observed. The calculation based on this staircase relationship revealed that the single-electron charging into the Au floating dot was obtained. Therefore, our devices are one of the candidates for CNTSET-based single-electron memories, which can be used for digital operating and ultralow-power consumption devices.

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Low temperature electron transport spectroscopy of mechanically templated carbon nanotube single electron transistors

Cited by 3 publications

References 48 publications

Dielectrophoretic alignment of carbon nanotubes: theory, applications, and future

Dielectrophoretic alignment of carbon nanotubes: theory, applications, and future

Bio-inspired gelatin/single-walled carbon nanotube nanocomposite for transient electrochemical energy storage: An approach towards eco-friendly and sustainable energy system

Carbon nanotube single-electron transistors with single-electron charge storages

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