Vertically aligned carbon nanotubes, MoS2–rGo based optoelectronic hybrids for NO2 gas sensing

Ghasemi, Foad

doi:10.1038/s41598-020-68388-2

Cited by 38 publications

(17 citation statements)

References 38 publications

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“…FETs are widely used in various sensors such as photodetectors, − biosensors, − chemical sensors, − gas sensors, − and pressure sensors, − due to their excellent signal amplification, easy circuit integration, simple device configuration, low cost, miniaturization feasibility, and real-time detection. Generally, a FET is composed of four classical parts: gate electrode, source and drain electrode, semiconductor active layer (channel region connecting source and drain), and dielectric layer (separating gate from channel).…”

Section: Sensing Mechanisms Of Graphene Sensorsmentioning

confidence: 99%

Physical and Chemical Sensors on the Basis of Laser-Induced Graphene: Mechanisms, Applications, and Perspectives

2021

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Laser-induced graphene (LIG) is produced rapidly by directly irradiating carbonaceous precursors, and it naturally exhibits as a three-dimensional porous structure. Due to advantages such as simple preparation, time-saving, environmental friendliness, low cost, and expanding categories of raw materials, LIG and its derivatives have achieved broad applications in sensors. This has been witnessed in various fields such as wearable devices, disease diagnosis, intelligent robots, and pollution detection. However, despite LIG sensors having demonstrated an excellent capability to monitor physical and chemical parameters, the systematic review of synthesis, sensing mechanisms, and applications of them combined with comparison against other preparation approaches of graphene is still lacking. Here, graphene-based sensors for physical, biological, and chemical detection are reviewed first, followed by the introduction of general preparation methods for the laser-induced method to yield graphene. The preparation and advantages of LIG, sensing mechanisms, and the properties of different types of emerging LIG-based sensors are comprehensively reviewed. Finally, possible solutions to the problems and challenges of preparing LIG and LIG-based sensors are proposed. This review may serve as a detailed reference to guide the development of LIG-based sensors that possess properties for future smart sensors in health care, environmental protection, and industrial production.

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Section: Sensing Mechanisms Of Graphene Sensorsmentioning

confidence: 99%

Physical and Chemical Sensors on the Basis of Laser-Induced Graphene: Mechanisms, Applications, and Perspectives

2021

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“…The GO solution was synthesized by the modified Hummers method, the synthesis details are described in the “ Experimental ” section 31 . The prepared solution was cast onto a commercial DVD and allowed to dry completely.…”

Section: Resultsmentioning

confidence: 99%

Plasma-assisted three-dimensional lightscribe graphene as high-performance supercapacitors

Namdar

Ghasemi

Sanaee

2022

Sci Rep

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Graphene-based supercapacitors demonstrate extraordinary energy storage capacity due to their layered structure, large effective surface area, high electrical conductivity and acceptable chemical stability. Herein, reduced graphene oxide (rGO)-based supercapacitors were introduced in a simple, and fast method with considerable performance. For this purpose, graphene oxide (GO) was synthesized by the modified Hummers’ method and then easily reduced to desired patterns of rGO using a commercial LightScribe DVD drive. In order to increase the effective surface area, as well as the electrical conductivity of rGO layers, oxygen/sulfur hexafluoride plasma was applied to the rGO followed by laser irradiation. By performing such sequential processes, an rGO-based supercapacitor was introduced with a capacitance of about 10.2 F/cm3, which had high stability for more than 1000 consecutive charge–discharge cycles. The fabrication steps of the electrodes were investigated by different analyses such as SEM, TEM, Raman, surface resistance, BET, and XPS measurements. Results showed that these rGO-based electrodes fabricated by sequential processes are very interesting for practical applications of energy storage.

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“…The GO solution was synthesized by the modi ed Hummers method, the synthesis details are described in the experimental Sect. 31 . The prepared solution was cast onto a commercial DVD and allowed to dry completely.…”

Section: Resultsmentioning

confidence: 99%

Plasma-Assisted Three-Dimensional Lightscribe Graphene as High Performance Supercapacitors

Namdar

Ghasemi

Sanaee

2021

Preprint

Self Cite

View full text Add to dashboard Cite

Graphene-based supercapacitors demonstrate extraordinary energy storage capacity due to their layered structure, large effective surface area, high electrical conductivity and acceptable chemical stability. Herein, reduced graphene oxide (rGO)-based supercapacitors were introduced in a simple, green, fast and inexpensive method. For this purpose, graphene oxide (GO) was synthesized by the modified Hummers’ method and then easily reduced to desired patterns of rGO using a commercial LightScribe DVD drive. In order to increase the effective surface area, as well as the electrical conductivity of rGO layers, oxygen/sulfur hexafluoride plasma was applied to the rGO followed by laser irradiation. By performing such sequential processes, an rGO-based supercapacitor was introduced with a capacitance of about 10.2 F/cm3, which had high stability for more than 1000 consecutive charge-discharge cycles. The fabrication steps of the electrodes were investigated by different analyses such as SEM, TEM, Raman, surface resistance and XPS measurements. Results show that these rGO-based electrodes fabricated by sequential processes are very interesting for practical applications of energy storage.

show abstract

Vertically aligned carbon nanotubes, MoS2–rGo based optoelectronic hybrids for NO2 gas sensing

Cited by 38 publications

References 38 publications

Physical and Chemical Sensors on the Basis of Laser-Induced Graphene: Mechanisms, Applications, and Perspectives

Physical and Chemical Sensors on the Basis of Laser-Induced Graphene: Mechanisms, Applications, and Perspectives

Plasma-assisted three-dimensional lightscribe graphene as high-performance supercapacitors

Plasma-Assisted Three-Dimensional Lightscribe Graphene as High Performance Supercapacitors

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