High-Sensitivity Sensor Using C<sub>60</sub>-Single Molecule Transistor

Nasri, Abdelghaffar; Boubaker, Aïmen; Hafsi, B.; Khaldi, Wassim; Kalboussi, Adel

doi:10.1109/jsen.2017.2769803

Cited by 20 publications

(13 citation statements)

References 52 publications

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“…Needless to say these VOCs are extremely bad for a healthy environment and life. Therefore, molecular sensing of toxic organic substances has become an important subject and many researchers have been working to design a novel nanomaterials to design functional system to address these environment-related problems [51,52,53,54]. Previous investigations have underlined the fact that a well-designed host nanostructure, particularly high surface area nanoporous materials, are essential for enhancing sensor performance [55,56,57,58,59,60].…”

Section: Discussionmentioning

confidence: 99%

Self-Assembled Fullerene Crystals as Excellent Aromatic Vapor Sensors

Furuuchi

Shrestha

Yamashita

et al. 2019

Sensors

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Here we report the aromatic vapor sensing performance of bitter melon shaped nanoporous fullerene C60 crystals that are self-assembled at a liquid-liquid interface between isopropyl alcohol and C60 solution in dodecylbenzene at 25 °C. Average length and center diameter of the crystals were ca. 10 μm and ~2 μm, respectively. Powder X-ray diffraction pattern (pXRD) confirmed a face-centered cubic (fcc) structure with cell dimension ca. a = 1.4272 nm, and V = 2.907 nm3, which is similar to that of the pristine fullerene C60. Transmission electron microscopy (TEM) confirmed the presence of a nanoporous structure. Quartz crystal microbalance (QCM) results showed that the bitter melon shaped nanoporous C60 performs as an excellent sensing system, particularly for aromatic vapors, due to their easy diffusion through the porous architecture and strong π–π interactions with the sp2-carbon.

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Section: Discussionmentioning

confidence: 99%

Self-Assembled Fullerene Crystals as Excellent Aromatic Vapor Sensors

Furuuchi

Shrestha

Yamashita

et al. 2019

Sensors

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“…Single-molecule electrical detection technology has dramatically increased our ability to visualize the chemical/biological interactions with single-molecule or single-event sensitivity. − It has also provided the impetus for lots of significant advances in fundamental discoveries of molecular mechanisms and direct observation of unique quantum effects in charge transport. − Recently, the utilities of molecular junctions were demonstrated to detect chemical and biological phenomena with high temporal/spatial resolution and high signal-to-noise ratios. ,,, Among them, the ultrasensitivity of the single-molecule break junction (SMBJ) approach, including the scanning tunneling microscopy break junction (STM-BJ) that was first proposed by Tao et al , and the mechanically controllable break junctions (MCBJ), , and their potential for detecting chemically/biologically relevant compounds prompted us to explore the single-molecule sensing platform based on electrical conductance measurements. Several theoretical and experimental attempts have been made to construct sensors for ions, , environmental pH, gas detection, , and genetic material detection . However, most of these sensing platforms are unable to determine the accurate content of the target analytes.…”

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confidence: 99%

Determination of Ag[I] and NADH Using Single-Molecule Conductance Ratiometric Probes

Zhuang

Lin

et al. 2020

ACS Sens.

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The sensing platform based on single-molecule measurements provides a new perspective for constructing ultrasensitive systems. However, most of these sensing platforms are unavailable for the accurate determination of target analytes. Herein, we demonstrate a conductance ratiometric strategy combing with the single-molecule conductance techniques for ultrasensitive and precise determination. A single-molecule sensing platform was constructed with the 3,3′,5,5′-tetramethylbenzidine (TMB) and oxidized TMB (oxTMB) as the conductance ratiometric probes, which was applied in the detection of Ag[I] and nicotinamide adenine dinucleotide (NADH). It was found that the charge transport properties of TMB and oxTMB were distinct with more than an order of magnitude change of the conductance, thus enabling conductance ratiometric analysis of the Ag[I] and NADH in the real samples. The proposed method is ultrasensitive and has an anti-interference ability in the complicated matrix. The limit of detection can be as low as attomolar concentrations (∼34 aM). We believe that the proposed conductance ratiometric approach is generally enough to have a promising potential for broad and complicated analysis.

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“…Modern nanotechnology has enabled the laboratory study of single-phase nanoscale and/or molecular materials, including quantum dots 1 , nanowires 2 , various organic and biological molecules 3 , 4 , and others 5 , 6 . However, manufacturing devices utilizing such single-phase entities on the industrial scale remains a challenge.…”

Section: Introductionmentioning

confidence: 99%

Inferring the energy sensitivity and band gap of electronic transport in a network of carbon nanotubes

Tang

2022

Sci Rep

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Since the industrialization of single-phase nanomaterial-based devices is still challenging, intensive research focus has been given to complex materials consisting of multiple nanoscale entities, including networks and matrices of nanowires, nanotubes, nanoribbons, or other large molecules; among these complex materials, networks of carbon nanotubes are a typical example. Detailed knowledge of the energy sensitivity and band gap of electronic transport in such a material system is difficult to detect, despite its importance in electronic, energetic and sensing applications. Here, we propose a new methodology to obtain these quantities using the measured Seebeck coefficient at a certain temperature but different Fermi levels. We discover that the network consisting of semiconducting (11,10)-carbon nanotubes actually exhibits metallic transport at room temperature. It is also interesting to verify that intrananotube ballistic transport is dominant over diffusive scattering by long-range disorder, as well as the quantum hopping resistance at the contact points. The transport asymmetry ratio between the holes and electrons (1.75) is similar to the value observed in pristine graphene samples (1.50).

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High-Sensitivity Sensor Using C₆₀-Single Molecule Transistor

Cited by 20 publications

References 52 publications

Self-Assembled Fullerene Crystals as Excellent Aromatic Vapor Sensors

Self-Assembled Fullerene Crystals as Excellent Aromatic Vapor Sensors

Determination of Ag[I] and NADH Using Single-Molecule Conductance Ratiometric Probes

Inferring the energy sensitivity and band gap of electronic transport in a network of carbon nanotubes

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High-Sensitivity Sensor Using C60-Single Molecule Transistor

Cited by 20 publications

References 52 publications

Self-Assembled Fullerene Crystals as Excellent Aromatic Vapor Sensors

Self-Assembled Fullerene Crystals as Excellent Aromatic Vapor Sensors

Determination of Ag[I] and NADH Using Single-Molecule Conductance Ratiometric Probes

Inferring the energy sensitivity and band gap of electronic transport in a network of carbon nanotubes

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Product

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High-Sensitivity Sensor Using C₆₀-Single Molecule Transistor