Graphene-Based Quantum Capacitance Wireless Vapor Sensors

Deen, David A.; Olson, Eric J.; Ebrish, Mona A.; Koester, Steven J.

doi:10.1109/jsen.2013.2295302

Cited by 37 publications

(33 citation statements)

References 40 publications

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“…Graphene 1 is an excellent alternative to noble metals for constructing a wide range of sensors due to its electrical tunability 2 , high quantum efficiency for light-matter interactions 3 , quantum capacitance effects 4 , 5 , and tightly confined mid-infrared plasmons 6 – 10 . Unlike noble metals, such as gold or silver, the carrier concentration in graphene can be tuned, hence enabling the possibility of electrically reconfigurable biosensing 11 .…”

Section: Introductionmentioning

confidence: 99%

Graphene-edge dielectrophoretic tweezers for trapping of biomolecules

et al. 2017

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The many unique properties of graphene, such as the tunable optical, electrical, and plasmonic response make it ideally suited for applications such as biosensing. As with other surface-based biosensors, however, the performance is limited by the diffusive transport of target molecules to the surface. Here we show that atomically sharp edges of monolayer graphene can generate singular electrical field gradients for trapping biomolecules via dielectrophoresis. Graphene-edge dielectrophoresis pushes the physical limit of gradient-force-based trapping by creating atomically sharp tweezers. We have fabricated locally backgated devices with an 8-nm-thick HfO2 dielectric layer and chemical-vapor-deposited graphene to generate 10× higher gradient forces as compared to metal electrodes. We further demonstrate near-100% position-controlled particle trapping at voltages as low as 0.45 V with nanodiamonds, nanobeads, and DNA from bulk solution within seconds. This trapping scheme can be seamlessly integrated with sensors utilizing graphene as well as other two-dimensional materials.

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Section: Introductionmentioning

confidence: 99%

Graphene-edge dielectrophoretic tweezers for trapping of biomolecules

et al. 2017

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“…A complementary split ring resonator (CSRR)-based SIW (Substrate Integrated Waveguide) is coated with a graphene oxide (GO) film in Reference [144] by Chen et al for humidity sensing purposes. Other papers have also built wireless gas sensors with the help of GO, such as those found in Reference [287] by Le et al, along with the works of Lee et al [288], Deen et al [289] and also that of Park et al [290]. Other sensors based on graphene exist, including wireless bacteria sensors, as outlined by Mannoor et al [291].…”

Section: Overview Of Previously Used Rfid Sensor Materialsmentioning

confidence: 99%

A Review of Chipless Remote Sensing Solutions Based on RFID Technology

Gee

Anandarajah

Collins

2019

Sensors

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Chipless Radio Frequency Identification (RFID) has been used in a variety of remote sensing applications and is currently a hot research topic. To date, there have been a large number of chipless RFID tags developed in both academia and in industry that boast a large variation in design characteristics. This review paper sets out to discuss the various design aspects needed in a chipless RFID sensor. Such aspects include: (1) Addressing strategies to allow for unique identification of the tag, (2) Sensing mechanisms used to allow for impedance-based response signal modulation and (3) Sensing materials to introduce the desired impedance change when under the influence of the target stimulus. From the tabular comparison of the various sensing and addressing techniques, it is concluded that although many sensors provide adequate performance characteristics, more work is needed to ensure that this technology is capable/robust enough to operate in many of the applications it has been earmarked for.

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“…These devices embedded with an LC oscillator circuit are very handy for wireless readout purposes. The quantum capacitance of graphene has also been exploited for wireless sensing systems (Deen et al 2014), for applications like detection of ambient humidity. The results obtained with quantum capacitance have been verified with capacitance-voltage measurements done to validate their significance as sensing systems.…”

Section: Challenges With the Current Sensorsmentioning

confidence: 99%

Literature Review

Nag¹,

Mukhopadhyay²,

Kosel³

2019

Printed Flexible Sensors

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This chapter elucidates on some of the work done by different researchers on sensors developed from Carbon Nanotubes (CNTs) and graphene. Work done on the preparation and properties of CNTs and graphene are explained in addition to their employment as electrochemical, strain and electrical sensors. It also explains the work done on a range of wearable, flexible sensors, some of the network protocols used to operate them, the current challenges availing in the present scenario and some of the future opportunities in terms of market survey and betterment of the existing sensors.

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Graphene-Based Quantum Capacitance Wireless Vapor Sensors

Cited by 37 publications

References 40 publications

Graphene-edge dielectrophoretic tweezers for trapping of biomolecules

Graphene-edge dielectrophoretic tweezers for trapping of biomolecules

A Review of Chipless Remote Sensing Solutions Based on RFID Technology

Literature Review

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