Highly selective gas sensor arrays based on thermally reduced graphene oxide

Lipatov, Alexey; Varezhnikov, Alexey S.; Wilson, Peter M.; Sysoev, Victor V.; Kolmakov, Andrei; Sinitskii, Alexander

doi:10.1039/c3nr00747b

Cited by 275 publications

(202 citation statements)

References 62 publications

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“…Previously, different kinds of sensors were demonstrated for many other 2D materials, such as graphene, graphene oxide, and transition metal chalcogenides; which benefit from high surface-to-volume ratios and tunable electronic properties. [51,52] Very rich surface chemistry of MXenes with about 20 compositions of various transition metals and their combinations available to date [53,54] makes MXene FETs promising for sensing applications as well. Of course, the environmental degradation could be a serious issue for such sensors.…”

Section: Resultsmentioning

confidence: 99%

Effect of Synthesis on Quality, Electronic Properties and Environmental Stability of Individual Monolayer Ti₃C₂ MXene Flakes

Lipatov

Alhabeb

Lukatskaya

et al. 2016

Adv Elect Materials

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1,243

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Abstract2D transition metal carbide Ti 3 C 2 T x (T stands for surface termination), the most widely studied MXene, has shown outstanding electrochemical properties and promise for a number of bulk applications. However, electronic properties of individual MXene flakes, which are important for understanding the potential of these materials, remain largely unexplored. Herein, a modified synthetic method is reported for producing high-quality monolayer Ti 3 C 2 T x flakes. Field-effect transistors (FETs) based on monolayer Ti 3 C 2 T x flakes are fabricated and their electronic properties are measured. Individual Ti 3 C 2 T x flakes exhibit a high conductivity of 4600 ± 1100 S cm −1 and fieldeffect electron mobility of 2.6 ± 0.7 cm 2 V −1 s −1 . The resistivity of multilayer Ti 3 C 2 T x films is only one order of magnitude higher than the resistivity of individual flakes, which indicates a surprisingly good electron transport through the surface terminations of different flakes, unlike in many other 2D materials. Finally, the fabricated FETs are used to investigate the environmental stability and kinetics of oxidation of Ti 3 C 2 T x flakes in humid air. The high-quality Ti 3 C 2 T x flakes are reasonably stable and remain highly conductive even after their exposure to air for more than 24 h. It is demonstrated that after the initial exponential decay the conductivity of Ti 3 C 2 T x flakes linearly decreases with time, which is consistent with their edge oxidation. A l h a b e b , e t a l . i n A d v a n c e d E l e c t r o n i c M a t e r i a l s 2 ( 2 0 1 6 digitalcommons.unl.edu L i p a t o v &

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Section: Resultsmentioning

confidence: 99%

Effect of Synthesis on Quality, Electronic Properties and Environmental Stability of Individual Monolayer Ti₃C₂ MXene Flakes

Lipatov

Alhabeb

Lukatskaya

et al. 2016

Adv Elect Materials

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1,243

1,032

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“…Among graphene materials, graphene oxide (GO) stands out in gas sensing applications because of its easy solution process, large surface area and availability to further chemical modified with metal oxides or polymers [3][4][5]. However, heavily oxidized GO is not electrically conductive, hindering its application in practical electronic measurements during the gas sensing detection, and it can be reduced by chemical or thermal reduction methods [3]. Reduced graphene oxide (rGO) based sensitive devices have been used to detect gases such as NH 3 , NO 2 , H 2 , methanol, ethanol and so on [2][3][4]6,7].…”

Section: Introductionmentioning

confidence: 99%

Reduced graphene oxide/hierarchical flower-like zinc oxide hybrid films for room temperature formaldehyde detection

Wang

Xie

et al. 2015

Sensors and Actuators B: Chemical

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“…rGO has also found extensive use in gas sensing [62][63][64][65][66] which could be attributed to the presence of some chemically active defect sites even after reduction of GO, high conductivity, capability for surface modification and water dispersibility. Ppb level detection of acetone and other toxic chemicals has been successfully demonstrated by a GO based chemical sensor reduced by hydrazine vapor.…”

Section: Graphenementioning

confidence: 99%

“…Even though rGO had demonstrated as a promising gas sensing material, selective detection of gas molecules remains as a great challenge for enabling practical use, similar to graphene. In this direction, Lipatov et al fabricated a rGO based gas sensing system that could recognize different alcohols such as ethanol, methanol and isopropanol by making use of the significantly different properties of rGO flakes obtained from the same batch fabrication [64].…”

Section: Graphenementioning

confidence: 99%

Two-Dimensional Materials for Sensing: Graphene and Beyond

Varghese²,

et al. 2015

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Two-dimensional materials have attracted great scientific attention due to their unusual and fascinating properties for use in electronics, spintronics, photovoltaics, medicine, composites, etc. Graphene, transition metal dichalcogenides such as MoS2, phosphorene, etc., which belong to the family of two-dimensional materials, have shown great promise for gas sensing applications due to their high surface-to-volume ratio, low noise and sensitivity of electronic properties to the changes in the surroundings. Two-dimensional nanostructured semiconducting metal oxide based gas sensors have also been recognized as successful gas detection devices. This review aims to provide the latest advancements in the field of gas sensors based on various two-dimensional materials with the main focus on sensor performance metrics such as sensitivity, specificity, detection limit, response time, and reversibility. Both experimental and theoretical studies on the gas sensing properties of graphene and other two-dimensional materials beyond graphene are also discussed. The article concludes with the current challenges and future prospects for two-dimensional materials in gas sensor applications. OPEN ACCESSElectronics 2015, 4 652

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Highly selective gas sensor arrays based on thermally reduced graphene oxide

Abstract: "Highly selective gas sensor arrays based on thermally reduced graphene oxide" (2014). Faculty Publications --Chemistry Department. 89.

Cited by 275 publications

References 62 publications

Effect of Synthesis on Quality, Electronic Properties and Environmental Stability of Individual Monolayer Ti₃C₂ MXene Flakes

Effect of Synthesis on Quality, Electronic Properties and Environmental Stability of Individual Monolayer Ti₃C₂ MXene Flakes

Reduced graphene oxide/hierarchical flower-like zinc oxide hybrid films for room temperature formaldehyde detection

Two-Dimensional Materials for Sensing: Graphene and Beyond

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Highly selective gas sensor arrays based on thermally reduced graphene oxide

Abstract: "Highly selective gas sensor arrays based on thermally reduced graphene oxide" (2014). Faculty Publications --Chemistry Department. 89.

Cited by 275 publications

References 62 publications

Effect of Synthesis on Quality, Electronic Properties and Environmental Stability of Individual Monolayer Ti3C2 MXene Flakes

Effect of Synthesis on Quality, Electronic Properties and Environmental Stability of Individual Monolayer Ti3C2 MXene Flakes

Reduced graphene oxide/hierarchical flower-like zinc oxide hybrid films for room temperature formaldehyde detection

Two-Dimensional Materials for Sensing: Graphene and Beyond

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Product

Resources

About

Effect of Synthesis on Quality, Electronic Properties and Environmental Stability of Individual Monolayer Ti₃C₂ MXene Flakes

Effect of Synthesis on Quality, Electronic Properties and Environmental Stability of Individual Monolayer Ti₃C₂ MXene Flakes