NO<sub>2</sub> Gas Sensor Using Iodine Doped Graphene at Room Temperature With Electric Field Enhanced Recovery

Jaiswal, Monica; Kumar, Robin; Mittal, Jagjiwan; Jha, Pawan Kumar

doi:10.1109/jsen.2022.3151428

Cited by 8 publications

(7 citation statements)

References 55 publications

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Section: Gas Sensing Applicationmentioning

confidence: 99%

“…Similarly, the electric-field-controlled desorption process also centered on disturbing the stability of molecule binding. A certain degree of gate voltage can well repel the nitrogen oxide ions from the sensor surface 223 (Figure 7c). In addition, considering energy consumption and stability, UV or electric-field-assisted sensing devices are preferred from the practical application perspective.…”

Section: Acsmentioning

confidence: 99%

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Advances in 2D Materials Based Gas Sensors for Industrial Machine Olfactory Applications

Wu,

Li,

Yang

et al. 2024

ACS Sens.

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The escalating development and improvement of gas sensing ability in industrial equipment, or “machine olfactory”, propels the evolution of gas sensors toward enhanced sensitivity, selectivity, stability, power efficiency, cost-effectiveness, and longevity. Two-dimensional (2D) materials, distinguished by their atomic-thin profile, expansive specific surface area, remarkable mechanical strength, and surface tunability, hold significant potential for addressing the intricate challenges in gas sensing. However, a comprehensive review of 2D materials-based gas sensors for specific industrial applications is absent. This review delves into the recent advances in this field and highlights the potential applications in industrial machine olfaction. The main content encompasses industrial scenario characteristics, fundamental classification, enhancement methods, underlying mechanisms, and diverse gas sensing applications. Additionally, the challenges associated with transitioning 2D material gas sensors from laboratory development to industrialization and commercialization are addressed, and future-looking viewpoints on the evolution of next-generation intelligent gas sensory systems in the industrial sector are prospected.

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Section: Gas Sensing Applicationmentioning

confidence: 99%

Section: Acsmentioning

confidence: 99%

Advances in 2D Materials Based Gas Sensors for Industrial Machine Olfactory Applications

Wu,

Li,

Yang

et al. 2024

ACS Sens.

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“…Chang et al used the FET sensor with carbon nanotubes as the channel material to detect NO 2 and NH 3 and realized rapid recovery by using negative and positive gate voltage, respectively [183,184]. Jaiswal et al [185] doped multilayered graphene (MLG) with iodine and significantly reduced the recovery time by ~88% after applying a negative gate voltage of −15 V.…”

Section: Gate Voltage-assistant Technologymentioning

confidence: 99%

Accelerating the Gas–Solid Interactions for Conductometric Gas Sensors: Impacting Factors and Improvement Strategies

2023

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Metal oxide-based conductometric gas sensors (CGS) have showcased a vast application potential in the fields of environmental protection and medical diagnosis due to their unique advantages of high cost-effectiveness, expedient miniaturization, and noninvasive and convenient operation. Of multiple parameters to assess the sensor performance, the reaction speeds, including response and recovery times during the gas–solid interactions, are directly correlated to a timely recognition of the target molecule prior to scheduling the relevant processing solutions and an instant restoration aimed for subsequent repeated exposure tests. In this review, we first take metal oxide semiconductors (MOSs) as the case study and conclude the impact of the semiconducting type as well as the grain size and morphology of MOSs on the reaction speeds of related gas sensors. Second, various improvement strategies, primarily including external stimulus (heat and photons), morphological and structural regulation, element doping, and composite engineering, are successively introduced in detail. Finally, challenges and perspectives are proposed so as to provide the design references for future high-performance CGS featuring swift detection and regeneration.

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“…[28,29] Recently, nanocarbon-based gas sensors based on graphene and carbon nanotubes (CNTs) have attracted considerable interest. [30][31][32][33][34][35] Notably, CNT-based sensors exhibit exceptional chemical stabilities, high electrical and thermal conductivities, and greater surface-to-volume ratios than their graphene counterparts. [36,37] Therefore, they are considered potentially superior alternatives to the conventional sensors mentioned earlier.…”

Section: Introductionmentioning

confidence: 99%

Aerosol‐Synthesized Surfactant‐Free Single‐Walled Carbon Nanotube‐Based NO₂ Sensors: Unprecedentedly High Sensitivity and Fast Recovery

Kim,

Han,

Choi

et al. 2024

Advanced Materials

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This study pioneers a chemical sensor based on surfactant‐free aerosol‐synthesized single‐walled carbon nanotube (SWCNT) films for detecting nitrogen dioxide (NO2). Unlike conventional CNTs, the SWCNTs used in this study exhibit one of the highest surface‐to‐volume ratios. They showed minimal bundling without the need for surfactants and had the lowest number of defects among reported CNTs. Furthermore, the dry‐transferrable and facile one‐step lamination resulted in promising industrial viability. When applied to devices, the sensor has excellent sensitivity (41.6% at 500 ppb), rapid response/recovery time (14.2/120.8 s), a remarkably low limit of detection (below ∼0.161 ppb), minimal noise, repeatability for more than 50 cycles without fluctuation, and long‐term stability for longer than 6 months. This is the best performance reported for a pure CNT‐based sensor. In addition, the aerosol SWCNTs demonstrated consistent gas‐sensing performance even after 5000 bending cycles, indicating their suitability for wearable applications. Based on experimental and theoretical analyses, the proposed aerosol CNTs are expected to overcome the limitations associated with conventional CNT‐based sensors, thereby offering a promising avenue for various sensor applications.This article is protected by copyright. All rights reserved

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NO₂ Gas Sensor Using Iodine Doped Graphene at Room Temperature With Electric Field Enhanced Recovery

Cited by 8 publications

References 55 publications

Advances in 2D Materials Based Gas Sensors for Industrial Machine Olfactory Applications

Advances in 2D Materials Based Gas Sensors for Industrial Machine Olfactory Applications

Accelerating the Gas–Solid Interactions for Conductometric Gas Sensors: Impacting Factors and Improvement Strategies

Aerosol‐Synthesized Surfactant‐Free Single‐Walled Carbon Nanotube‐Based NO₂ Sensors: Unprecedentedly High Sensitivity and Fast Recovery

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NO2 Gas Sensor Using Iodine Doped Graphene at Room Temperature With Electric Field Enhanced Recovery

Cited by 8 publications

References 55 publications

Advances in 2D Materials Based Gas Sensors for Industrial Machine Olfactory Applications

Advances in 2D Materials Based Gas Sensors for Industrial Machine Olfactory Applications

Accelerating the Gas–Solid Interactions for Conductometric Gas Sensors: Impacting Factors and Improvement Strategies

Aerosol‐Synthesized Surfactant‐Free Single‐Walled Carbon Nanotube‐Based NO2 Sensors: Unprecedentedly High Sensitivity and Fast Recovery

Contact Info

Product

Resources

About

NO₂ Gas Sensor Using Iodine Doped Graphene at Room Temperature With Electric Field Enhanced Recovery

Aerosol‐Synthesized Surfactant‐Free Single‐Walled Carbon Nanotube‐Based NO₂ Sensors: Unprecedentedly High Sensitivity and Fast Recovery