Effective design and fabrication of low-power-consumption self-heated SnO2 nanowire sensors for reducing gases

Ngoc, Trinh Minh; Duy, Nguyễn Văn; Hòa, Nguyễn Đức; Hung, Chu Manh; Nguyen, Hugo; Hieu, Nguyen Van

doi:10.1016/j.snb.2019.05.074

Cited by 39 publications

(20 citation statements)

References 33 publications

(30 reference statements)

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“…Typically, an ESH value greater than 1 (ESH > 1) is beneficial for self-heating, which means an increase of a few Kelvin/microwatt consumed. Conventional self-heating sensors (ΔT ∼ 500 °C and P ∼ 10 mW) have ESH values of ∼ 0.05 [ 63 ]. In general, MOS materials with nanowire (NW) morphology are preferred for self-heating studies [ 63 ].…”

Section: Self-powered Gas Sensorsmentioning

confidence: 99%

“…Conventional self-heating sensors (ΔT ∼ 500 °C and P ∼ 10 mW) have ESH values of ∼ 0.05 [ 63 ]. In general, MOS materials with nanowire (NW) morphology are preferred for self-heating studies [ 63 ]. As the NWs serve as pathways for electron transfer, the lengths of the NWs directly affect the heat generated inside the gas sensor, thereby allowing Joule heating to warm effectively the NWs and ensuring a higher response to the target gas.…”

Section: Self-powered Gas Sensorsmentioning

confidence: 99%

“…Furthermore, power is consumed at microwatt levels owing to the minimal thermal capacitance of the NWs [ 32 , 65 , 66 ]. Moreover, the diameter of the NW is important because the temperature increase has an indirect relation with the radius of the NW; thinner NWs produce larger increases in the temperature [ 63 ].…”

Section: Self-powered Gas Sensorsmentioning

confidence: 99%

“…The first NW-based self-heated sensor was introduced by Strelcov et al [ 67 ], and so far, the self-heating properties of single NW [ 66 , [68] , [69] , [70] ], multiple NWs [ 67 , 68 , 71 ] and networked NWs [ 61 , 68 ] have been reported. As compared to the single-NW and the network-type NW sensors synthesized by using off-chip methods, on-chip NW sensors have many advantages [ 43 , 63 , 72 , 73 ]. Therefore, on-chip networked NW gas sensors are being developed for self-heating purposes; in this context, the on-chip methods are used to obtain power consumption at μW level [ 61 , 67 ].…”

Section: Self-powered Gas Sensorsmentioning

confidence: 99%

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Recent advances in energy-saving chemiresistive gas sensors: A review

et al. 2021

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With the tremendous advances in technology, gas-sensing devices are being popularly used in many distinct areas, including indoor environments, industries, aviation, and detectors for various toxic domestic gases and vapors. Even though the most popular type of gas sensor, namely, resistive-based gas sensors, have many advantages over other types of gas sensors, their high working temperatures lead to high energy consumption, thereby limiting their practical applications, especially in mobile and portable devices. As possible ways to deal with the high-power consumption of resistance-based sensors, different strategies such as self-heating, MEMS technology, and room-temperature operation using especial morphologies, have been introduced in recent years. In this review, we discuss different types of energy-saving chemisresitive gas sensors and their application in the fields of environmental monitoring. At the end, the review will be concluded by providing a summary, challenges and future perspectives.

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Section: Self-powered Gas Sensorsmentioning

confidence: 99%

Section: Self-powered Gas Sensorsmentioning

confidence: 99%

Section: Self-powered Gas Sensorsmentioning

confidence: 99%

Section: Self-powered Gas Sensorsmentioning

confidence: 99%

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Recent advances in energy-saving chemiresistive gas sensors: A review

et al. 2021

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“…Therefore, it has been used in many applications, including gas sensors [19], lithium ion batteries [20], photodetectors [21] and electrodes [22]. Therefore, different methods, such as the vapor-liquid-solid (VLS) technique [23,24], colloidal synthesis [25], chemical vapor deposition [26,27] and hydrothermal [28] have been used for the preparation of SnO 2 nanowires (NWs). Among them, the VLS method has advantages, such as simplicity, low price and the possibility of control over the SnO 2 NWs.…”

Section: Introductionmentioning

confidence: 99%

A Novel X-Ray Radiation Sensor Based on Networked SnO2 Nanowires

et al. 2019

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X-Ray radiation sensors that work at room temperature are in demand. In this study, a novel, low-cost real-time X-ray radiation sensor based on SnO2 nanowires (NWs) was designed and tested. Networked SnO2 NWs were produced via the vapor–liquid–solid technique. X-ray diffraction (XRD), transmission electron microscopy (TEM) and field emission scanning electron microscopy (SEM) analyses were used to explore the crystallinity and morphology of synthesized SnO2 NWs. The fabricated sensor was exposed to X-rays (80 kV, 0.0–2.00 mA) and the leakage current variations were recorded at room temperature. The SnO2 NWs sensor showed a high and relatively linear response with respect to the X-ray intensity. The X-ray sensing results show the potential of networked SnO2 NWs as novel X-ray sensors.

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Recent Advances in Integrating 1D Nanomaterials into Chemiresistive Gas Sensor Devices

Lin

Kilani

Mao

2023

Adv Materials Technologies

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There is rapid growth in the global gas sensor market driven by new regulations for industrial emission control and residential environments and increasing demand for portable devices. Nanosensors promise to be the next generation gas sensors for the direct detection of chemical species due to their ultrahigh sensitivity, fast response, ultralow weight, and low power consumption. However, transitioning nanosensors from basic research or prototype projects to commercial products encounters two major technical challenges: difficulty in scale up and inability to demonstrate real‐world use in changing humidity and temperature conditions. The advances in addressing these two technical challenges in recent literature are surveyed. The most common 1D nanomaterials in R&D for gas sensing, metal oxides, and carbon nanotubes, as well as less common metal nanowires and psudo‐1D crystals made from charge‐transfer complexes (CTCs) are included. This review delves into the specifics of each of these 1D nanomaterials for gas sensing applications, their synthesis and deposition, sensing performance, and commercial development in the last 5 years. It highlights the scalability of one‐step electrodeposition of CTC nanowires on prefabricated electrodes, at room temperature, and from solution in making gas nanosensors.

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Effective design and fabrication of low-power-consumption self-heated SnO2 nanowire sensors for reducing gases

Abstract: This paper has been peer-reviewed but does not include the final publisher proof-corrections or journal pagination.

Cited by 39 publications

References 33 publications

Recent advances in energy-saving chemiresistive gas sensors: A review

Recent advances in energy-saving chemiresistive gas sensors: A review

A Novel X-Ray Radiation Sensor Based on Networked SnO2 Nanowires

Recent Advances in Integrating 1D Nanomaterials into Chemiresistive Gas Sensor Devices

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