A Low Power Cantilever-Based Metal Oxide Semiconductor Gas Sensor

Xie, Dongcheng; Chen, Dongliang; Peng, Shufeng; Yang, Yujie; Xu, Lei; Feng, Wei

doi:10.1109/led.2019.2914271

Cited by 29 publications

(21 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The average power consumption of the sensor cell is 3.03 mW when the sensor cell starts working. In [29], a novel metal oxide semiconductor (MOS) gas sensor based on a single cantilever is reported. The static power consumption is 2.96 mW.…”

Section: Gas Sensorsmentioning

confidence: 99%

See 1 more Smart Citation

A New RF Energy Harvesting System Based on Two Architectures to Enhance the DC Output Voltage for WSN Feeding

Benkalfate

Ouslimani

Kasbari

et al. 2022

Sensors

View full text Add to dashboard Cite

In this paper, a new RF Energy Harvesting (RF-EH) system for Wireless Sensor Network (WSN) feeding is proposed. It is based on two different monitored architectures using switch circuits controlled by the input powers. One architecture is more adapted to high input powers and the other to low input powers. The two different architectures and the system are designed and realized on Teflon glass substrate with a relative permittivity of 2.1 and thickness of 0.67 mm. They are tested separately as a function of the distance from the relay antenna. A new multiband antenna with a size of 40 × 30 mm2 is used for both architectures and the system. The measured antenna gains are 2.7 dB, 2.9 dB, and 2.55 dB for the frequencies of 1.8 GHz, 2.1 GHz, and 2.66 GHz corresponding to the mobile communication networks, respectively. The rectifier consists of two Schottky diodes forming a full-wave rectifier and voltage doubler. The maximum measured RF-to-DC conversion efficiency is 71.5%. The proposed RF-EH system provides a maximum DC output voltage of 5.6 V and 3.15 V for an open and 2 kΩ resistance load, respectively.

show abstract

Section: Gas Sensorsmentioning

confidence: 99%

“…Feeding ability of the system and both architectures at 22 m from relay antenna compared to minimum required power supply of the gas sensors. The DC powers A1, B1, C1, D1 and E1 correspond to the power supply of sensors given in the references [26][27][28][29][30], respectively.…”

Section: Figure 31mentioning

confidence: 99%

A New RF Energy Harvesting System Based on Two Architectures to Enhance the DC Output Voltage for WSN Feeding

Benkalfate

Ouslimani

Kasbari

et al. 2022

Sensors

View full text Add to dashboard Cite

show abstract

“…The gas sensors in IoE application are required to have a small size with low power consumption for their embedding in portable devices, not to mention excellent gas sensing performance. 2 To achieve the requirements for IoE application, various gas sensor principles have been suggested including cantileverbased gas sensors 3 , capacitive gas sensors 4 , thermometric gas sensors 5 , optical gas sensors 6 , field-effect transistor gas sensors 7 , colorimetric gas sensors 8 , solid-state electrochemical gas sensors [9][10] , or chemoresistive gas sensors [11][12][13] . Among them, the chemoresistive gas sensors have been considered the most appropriate principle due to their simple structures with easy fabrication processes and low cost.…”

Section: Introductionmentioning

confidence: 99%

Light-activated gas sensing: a perspective of integration with micro-LEDs and plasmonic nanoparticles

et al. 2021

View full text Add to dashboard Cite

show abstract

“…The developed nanowire array heater consumed only 2.51 mW to reach 300 °C, surpassing the performance of similar‐sized film‐type microheaters. [ 18–20 ] In other words, thanks to the geometric structuring, the advantageous thermal properties of the nanowires could be fully exploited, overcoming the fundamental power consumption limit of conventional electrothermal heaters.…”

Section: Introductionmentioning

confidence: 99%

Perfectly Aligned, Air‐Suspended Nanowire Array Heater and Its Application in an Always‐On Gas Sensor

Choi

Lee

et al. 2020

Adv Funct Materials

View full text Add to dashboard Cite

In spite of the excellent thermal properties of nanowires, the typical form factor of unrefined nanowires has restricted their potential use in developing ultralow power electrothermal heater and application device. In this paper, a nanowire array with a perfectly aligned geometric structure on an air-suspended beam is proposed as a novel heating element. By locally confining the generated heat and suppressing beam conduction loss to the substrate, the proposed nanowire array heater overcomes the fundamental power consumption limits of conventional film-type microheaters. As a result, only 2.51 mW of power is required to reach an average temperature of 300 °C, surpassing the performance of state-of-the-art microheaters. The developed nanowire array heater is monolithically integrated with gas sensing nanowires to demonstrate its full capability as an ultralow power gas sensor. The fabricated device successfully detects low concentration carbon monoxide gas of 1 ppm, using less than 5 mW of power. The presented technique offers a promising pathway toward realizing always-on gas sensors driven by battery-powered mobile devices, which will ensure a hazardous gas-free safe environment. In addition, the proposed strategy of employing geometrically structured nanomaterials in the electrothermal heater design enables to lead out their potential thermal capability in many other applications.

show abstract

A Low Power Cantilever-Based Metal Oxide Semiconductor Gas Sensor

Cited by 29 publications

References 10 publications

A New RF Energy Harvesting System Based on Two Architectures to Enhance the DC Output Voltage for WSN Feeding

A New RF Energy Harvesting System Based on Two Architectures to Enhance the DC Output Voltage for WSN Feeding

Light-activated gas sensing: a perspective of integration with micro-LEDs and plasmonic nanoparticles

Perfectly Aligned, Air‐Suspended Nanowire Array Heater and Its Application in an Always‐On Gas Sensor

Contact Info

Product

Resources

About