H2-gas sensing and discriminating actions of a single-yarn sensor based on a Pd/GO multilayered thin film using FFT

2020 ◽  
Vol 12 (27) ◽  
pp. 3537-3544 ◽  
Author(s):  
Pi-Guey Su ◽  
Sheng Lin-Kuo
Keyword(s):  
Thin Film ◽  
Gas Sensor ◽  
Gas Sensing ◽  
Multilayer Thin Film ◽  
Multilayered Thin Film ◽  
Self Assembling ◽  
Single Yarn ◽  
Self Assembled

A single-yarn H2-gas sensor was fabricated by self-assembling Pd/GO/PAH/PSS/PAH/yarn multilayer thin film in situ self-assembled on a single-yarn.

Gas‐Sensing Properties of Th / SnO2 Thin‐Film Gas Sensor to Trimethylamine

1999 ◽  
Vol 146 (9) ◽  
pp. 3536-3537 ◽  
Author(s):  
P. H. Wei ◽  
G. B. Li ◽  
S. Y. Zhao ◽  
L. R. Chen
Keyword(s):  
Thin Film ◽  
Gas Sensor ◽  
Gas Sensing ◽  
Sno2 Thin Film ◽  
Sensing Properties ◽  
Gas Sensing Properties

The Controllable Flexible Features of ZnO Thin Film Gas Sensor

2011 ◽  
Vol 335-336 ◽  
pp. 478-482 ◽  
Author(s):  
Xin Liang Cao
Keyword(s):  
Thin Film ◽  
Zinc Oxide ◽  
Gas Sensor ◽  
Gas Sensors ◽  
Gas Sensing ◽  
Zno Thin Film ◽  
Preparation Methods

For different gas sensing, the preparation of Zinc Oxide (ZnO) thin film gas sensor has its particularity. In this paper, three kinds of preparation methods, fitting for CO and methane and CO2 sensing, are introduced. Moreover, the sensitivity is respectively analyzed as gas sensors. The reference is provided for the preparation and applications of ZnO thin film gas sensor.

In situ ellipsometric diagnostics of multilayer thin film deposition during sputtering

1998 ◽  
Vol 313-314 ◽  
pp. 511-515 ◽  
Author(s):  
Xiang Gao ◽  
Darin W Glenn ◽  
John A Woollam
Keyword(s):  
Thin Film ◽  
Thin Film Deposition ◽  
Film Deposition ◽  
Multilayer Thin Film

scholarly journals CH3NH3PbBr3 Thin Film Served as Guided-Wave Layer for Enhancing the Angular Sensitivity of Plasmon Biosensor

Biosensors ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 415
Author(s):  
Leiming Wu ◽  
Yuanjiang Xiang ◽  
Yuwen Qin
Keyword(s):  
Thin Film ◽  
Surface Plasmon Resonance ◽  
Gas Sensor ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Gas Sensing ◽  
Hybrid Structure ◽  
Guided Wave ◽  
Angular Sensitivity ◽  
Liquid Sensing

CH3NH3PbBr3 perovskite thin film is used as a guided-wave layer and coated on the surface of an Au film to form the Au-perovskite hybrid structure. Using the hybrid structure, a perovskite-based guided-wave surface plasmon resonance (GWSPR) biosensor is proposed with high angular sensitivity. First, it is found that the electric field at the sensing interface is improved by the CH3NH3PbBr3 perovskite thin film, thereby enhancing the sensitivity. The result demonstrates that the angular sensitivity of the Au-perovskite-based GWSPR biosensor is as high as 278.5°/RIU, which is 110.2% higher than that of a conventional Au-based surface plasmon resonance (SPR) biosensor. Second, the selection of the coupling prism in the configuration of the GWSPR biosensor is also analyzed, and it indicates that a low refractive index (RI) prism can generate greater sensitivity. Therefore, the low-RI BK7 prism is served as the coupling prism for the proposed GWSPR biosensor. Finally, the proposed GWSPR sensing structure can not only be used for liquid sensing, but also for gas sensing, and it has also been demonstrated that the GWSPR gas sensor is 2.8 times more sensitive than the Au-based SPR gas sensor.

scholarly journals The Synthesis of the Pomegranate-Shaped α-Fe2O3 Using an In Situ Corrosion Method of Scorodite and Its Gas-Sensitive Property

Nanomaterials ◽  
2019 ◽  
Vol 9 (7) ◽  
pp. 977
Author(s):  
Wang ◽  
Tang ◽  
Cao ◽  
Chen ◽  
Rong
Keyword(s):  
Iron Oxide ◽  
Gas Sensor ◽  
Potential Application ◽  
Gas Sensing ◽  
Fe2o3 Nanoparticles ◽  
Forming Process ◽  
Gas Sensing Properties ◽  
Sensitive Property ◽  
Research Hotspots

The release of hazardous gas increases with the development of industry. The research of gas-sensitive materials has attracted attention. Nanoscale iron oxide (α-Fe2O3) is one of the research hotspots of gas-sensitive materials because it is a cheap, non-toxic semiconductor material. In this study, pomegranate-shaped α-Fe2O3 was synthesized using an in situ corrosion method of scorodite. Spherical-shaped α-Fe2O3 nanoparticles were included in the octahedral shells. The forming process of the structure was analyzed by a variety of measurements. The shell was formed first through the deposition of Fe(OH)3, which was produced by hydrolyzing scorodite. Then, the corrosion was continued and Fe(OH)3 precipitation was produced below the shell. The particles aggregated and formed spheres. The pomegranate-shaped α-Fe2O3 was formed when the scorodite was hydrolyzed completely. The gas-sensing properties of α-Fe2O3 were investigated. The results showed that pomegranate-shaped α-Fe2O3 was responsive to a variety of gases, especially xylene. The value of Ra/Rg was 67.29 at 340 °C when the concentration of xylene was 1000 ppm. This indicated the pomegranate-shaped α-Fe2O3 has potential application as a xylene gas sensor.

Fabrication of a kinetically sprayed CuO ultra-thin film to evaluate CO gas sensing parameters

2019 ◽  
Vol 43 (20) ◽  
pp. 7814-7821 ◽  
Author(s):  
Dahyun Choi ◽  
Hyojun Kim ◽  
Minhee Son ◽  
Hyungsub Kim ◽  
Hee Chul Lee ◽  
...  
Keyword(s):  
Thin Film ◽  
Thin Layer ◽  
Gas Sensor ◽  
Gas Sensing ◽  
Fabrication Process ◽  
Co Gas Sensor ◽  
Co Gas ◽  
Ultra Thin Film

We have introduced a new fabrication process for a CO gas sensor using a kinetically sprayed Cu thin layer, followed by oxidation at 250 °C.

Advances in understanding the gas sensing mechanisms by in-situ and operando spectroscopy

2021 ◽  
Author(s):  
Aditya Sharma ◽  
Chandra Sekhar Rout
Keyword(s):  
Gas Sensor ◽  
Gas Sensing ◽  
Active Sensing ◽  
Operando Spectroscopy ◽  
Physiochemical Properties ◽  
Comprehensive Knowledge ◽  
Gas Molecules

Comprehensive knowledge on the gas sensor mechanisms demands a detailed command of the physiochemical properties and features of the active sensing materials and their association with the analyte gas molecules....

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