Low power consumption and fast response H2S gas sensor based on a chitosan-CuO hybrid nanocomposite thin film

2020 ◽  
Vol 236 ◽  
pp. 116064 ◽  
Author(s):  
Fajr I.M. Ali ◽  
Saleh T. Mahmoud ◽  
Falah Awwad ◽  
Yaser E. Greish ◽  
Ayah F.S. Abu-Hani
Keyword(s):  
Thin Film ◽  
Power Consumption ◽  
Low Power ◽  
Gas Sensor ◽  
Fast Response ◽  
Low Power Consumption ◽  
Hybrid Nanocomposite ◽  
Nanocomposite Thin Film ◽  
H2s Gas Sensor

MEMS-Based Gas Sensor Using PdO-Decorated TiO2 Thin Film for Highly Sensitive and Selective H2 Detection with Low Power Consumption

2018 ◽  
Vol 14 (3) ◽  
pp. 305-313 ◽  
Author(s):  
Seungmin Kwak ◽  
Young-Seok Shim ◽  
Yong Kyoung Yoo ◽  
Jin-Hyung Lee ◽  
Inho Kim ◽  
...  
Keyword(s):  
Thin Film ◽  
Power Consumption ◽  
Low Power ◽  
Gas Sensor ◽  
Tio2 Thin Film ◽  
Low Power Consumption ◽  
Highly Sensitive

scholarly journals Improved Sensing Capability of Integrated Semiconducting Metal Oxide Gas Sensor Devices

Sensors ◽  
2019 ◽  
Vol 19 (2) ◽  
pp. 374 ◽  
Author(s):  
Ayoub Lahlalia ◽  
Olivier Le Neel ◽  
Ravi Shankar ◽  
Siegfried Selberherr ◽  
Lado Filipovic
Keyword(s):  
Metal Oxide ◽  
Power Consumption ◽  
Low Power ◽  
Gas Sensor ◽  
High Sensitivity ◽  
Fast Response ◽  
Low Power Consumption ◽  
Response Characteristics ◽  
The Impact ◽  
Semiconducting Metal Oxide

Semiconducting metal oxide (SMO) gas sensors were designed, fabricated, and characterized in terms of their sensing capability and the thermo-mechanical behavior of the micro-hotplate. The sensors demonstrate high sensitivity at low concentrations of volatile organic compounds (VOCs) at a low power consumption of 10.5 mW. In addition, the sensors realize fast response and recovery times of 20 s and 2.3 min, respectively. To further improve the baseline stability and sensing response characteristics at low power consumption, a novel sensor is conceived of and proposed. Tantalum aluminum (TaAl) is used as a microheater, whereas Pt-doped SnO2 is used as a thin film sensing layer. Both layers were deposited on top of a porous silicon nitride membrane. In this paper, two designs are characterized by simulations and experimental measurements, and the results are comparatively reported. Simultaneously, the impact of a heat pulsing mode and rubber smartphone cases on the sensing performance of the gas sensor are highlighted.

Thin-film gas sensor implemented on a low-power-consumption micromachined silicon structure

1998 ◽  
Vol 49 (1-2) ◽  
pp. 88-92 ◽  
Author(s):  
Vincenzo Guidi ◽  
Gian Carlo Cardinali ◽  
Leonello Dori ◽  
Guido Faglia ◽  
Matteo Ferroni ◽  
...  
Keyword(s):  
Thin Film ◽  
Power Consumption ◽  
Low Power ◽  
Gas Sensor ◽  
Low Power Consumption ◽  
Silicon Structure

scholarly journals Fabrication and Characteristics of Micro Platform for Micro Gas Sensor with Low Power Consumption

2011 ◽  
Vol 20 (5) ◽  
pp. 317-321 ◽  
Author(s):  
Woong-Jin Jang ◽  
Kwang-Bum Park ◽  
In-Ho Kim ◽  
Soon-Sup Park ◽  
Hyo-Derk Park ◽  
...  
Keyword(s):  
Power Consumption ◽  
Low Power ◽  
Gas Sensor ◽  
Low Power Consumption ◽  
Micro Gas Sensor

scholarly journals Dispersed-Monolayer Graphene-Doped Polymer/Silica Hybrid Mach-Zehnder interferometer (MZI) Thermal Optical Switch with Low-Power Consumption and Fast Response

Polymers ◽  
2019 ◽  
Vol 11 (11) ◽  
pp. 1898 ◽  
Author(s):  
Yue Cao ◽  
Daming Zhang ◽  
Yue Yang ◽  
Baizhu Lin ◽  
Jiawen Lv ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Power Consumption ◽  
Low Power ◽  
Optical Switch ◽  
Fast Response ◽  
Zehnder Interferometer ◽  
Low Power Consumption ◽  
Monolayer Graphene ◽  
Doped Polymer ◽  
Silica Hybrid

This article demonstrates a dispersed-monolayer graphene-doped polymer/silica hybrid Mach–Zehnder interferometer (MZI) thermal optical switch with low-power consumption and fast response. The polymer/silica hybrid MZI structure reduces the power consumption of the device as a result of the large thermal optical coefficient of the polymer material. To further decrease the response time of the thermal optical switch device, a polymethyl methacrylate, doped with monolayer graphene as a cladding material, has been synthesized. Our study theoretically analyzed the thermal conductivity of composites using the Lewis–Nielsen model. The predicted thermal conductivity of the composites increased by 133.16% at a graphene volume fraction of 0.263 vol %, due to the large thermal conductivity of graphene. Measurements taken of the fabricated thermal optical switch exhibited a power consumption of 7.68 mW, a rise time of 40 μs, and a fall time of 80 μs at a wavelength of 1550 nm.

Study on sensing properties of tin oxide CO gas sensor with low power consumption

2002 ◽  
Vol 81 (2-3) ◽  
pp. 182-186 ◽  
Author(s):  
Kyoung Ran Han ◽  
Chang Sam Kim ◽  
Keon Taek Kang ◽  
He Jin Koo ◽  
Deok Il Kang ◽  
...  
Keyword(s):  
Power Consumption ◽  
Low Power ◽  
Gas Sensor ◽  
Tin Oxide ◽  
Low Power Consumption ◽  
Sensing Properties ◽  
Co Gas Sensor ◽  
Co Gas
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