Scalable Fabrication of High-Performance NO2 Gas Sensors Based on Tungsten Oxide Nanowires by On-Chip Growth and RuO2-Functionalization

2014 ◽  
Vol 6 (15) ◽  
pp. 12022-12030 ◽  
Author(s):  
Phung Thi Hong Van ◽  
Nguyen Hoang Thanh ◽  
Vu Van Quang ◽  
Nguyen Van Duy ◽  
Nguyen Duc Hoa ◽  
...  
Keyword(s):  
Tungsten Oxide ◽  
Gas Sensors ◽  
High Performance ◽  
Oxide Nanowires ◽  
No2 Gas Sensors ◽  
On Chip

Simple fabrication method of silicon/tungsten oxide nanowires heterojunction for NO2 gas sensors

2018 ◽  
Vol 265 ◽  
pp. 522-528 ◽  
Author(s):  
Kyounghoon Lee ◽  
Dae-Hyun Baek ◽  
Hyungjoo Na ◽  
Jungwook Choi ◽  
Jongbaeg Kim
Keyword(s):  
Tungsten Oxide ◽  
Gas Sensors ◽  
Fabrication Method ◽  
Oxide Nanowires ◽  
No2 Gas Sensors

scholarly journals Gas Sensors Based on Mechanically Exfoliated MoS2 Nanosheets for Room-Temperature NO2 Detection

Sensors ◽  
2019 ◽  
Vol 19 (9) ◽  
pp. 2123 ◽  
Author(s):  
Wenli Li ◽  
Yong Zhang ◽  
Xia Long ◽  
Juexian Cao ◽  
Xin Xin ◽  
...  
Keyword(s):  
Gas Sensors ◽  
High Performance ◽  
Density Functional ◽  
Room Temperature ◽  
Mos2 Nanosheets ◽  
Mechanical Exfoliation ◽  
High Responsivity ◽  
Recovery Behavior ◽  
No2 Gas Sensors ◽  
No2 Detection

The unique properties of MoS2 nanosheets make them a promising candidate for high-performance room temperature gas detection. Herein, few-layer MoS2 nanosheets (FLMN) prepared via mechanical exfoliation are coated on a substrate with interdigital electrodes for room-temperature NO2 detection. Interestingly, compared with other NO2 gas sensors based on MoS2, FLMN gas sensors exhibit high responsivity for room-temperature NO2 detection, and NO2 is easily desorbed from the sensor surface with an ultrafast recovery behavior, with recovery times around 2 s. The high responsivity is related to the fact that the adsorbed NO2 can affect the electron states within the entire material, which is attributed to the very small thickness of the MoS2 nanosheets. First-principles calculations were carried out based on the density functional theory (DFT) to verify that the ultrafast recovery behavior arises from the weak van der Waals binding between NO2 and the MoS2 surface. Our work suggests that FLMN prepared via mechanical exfoliation have a great potential for fabricating high-performance NO2 gas sensors.

scholarly journals Nanostructured Tungsten Oxide Composite for High-Performance Gas Sensors

Sensors ◽  
2015 ◽  
Vol 15 (10) ◽  
pp. 27035-27046 ◽  
Author(s):  
Siyuan Chen ◽  
Ali Aldalbahi ◽  
Peter Feng
Keyword(s):  
Tungsten Oxide ◽  
Gas Sensors ◽  
High Performance ◽  
Oxide Composite

scholarly journals Comparative Studies of Chemoresistive Gas Sensors Based on Multiple Randomly Connected Wires and Arrays of Single-Wires

Proceedings ◽  
2018 ◽  
Vol 2 (13) ◽  
pp. 823
Author(s):  
Ondřej Chmela ◽  
Jakub Sadílek ◽  
Guillem Domènech-Gil ◽  
Isabel Gràcia ◽  
Albert Romano-Rodriguez ◽  
...  
Keyword(s):  
Tungsten Oxide ◽  
Gas Sensors ◽  
Comparative Studies ◽  
Response Rate ◽  
Response Magnitude ◽  
Interdigitated Electrodes ◽  
Oxide Nanowires ◽  
Single Nanowires ◽  
Magnitude Sensitivity

Chemoresitive gas sensors based on multiple nanowires (M-NWs) randomly grown and electrically inter-connected on the top of interdigitated electrodes (IDEs) and arrays of single nanowires connected between faced nanoelectrodes (A-S-NWs) are developed in this work. These systems, consisting of gas sensitive tungsten oxide nanowires (NWs), are tested to NO2, and their performance regarding the response magnitude, sensitivity and response rate are evaluated here.

Hybridized 1T/2H-MoS2/graphene fishnet tube for high-performance on-chip integrated micro-systems comprising supercapacitors and gas sensors

Nano Research ◽  
2020 ◽  
Vol 14 (1) ◽  
pp. 114-121
Author(s):  
Chi Zhang ◽  
Jing Ning ◽  
Boyu Wang ◽  
Haibin Guo ◽  
Xin Feng ◽  
...  
Keyword(s):  
Gas Sensors ◽  
High Performance ◽  
On Chip ◽  
Micro Systems

Two-dimensional MoSe2 nanosheets via liquid-phase exfoliation for high-performance room temperature NO2 gas sensors

2019 ◽  
Vol 30 (44) ◽  
pp. 445503 ◽  
Author(s):  
Xi Chen ◽  
Xinwei Chen ◽  
Yutong Han ◽  
Chen Su ◽  
Min Zeng ◽  
...  
Keyword(s):  
Liquid Phase ◽  
Gas Sensors ◽  
High Performance ◽  
Room Temperature ◽  
Two Dimensional ◽  
Liquid Phase Exfoliation ◽  
No2 Gas Sensors

Development of Gas Sensors Based on Tungsten Oxide Nanowires in Metal/SiO2/Metal Structure and Their Sensing Responses to NO2

2008 ◽  
Vol 47 (4) ◽  
pp. 3272-3276 ◽  
Author(s):  
Rong-Ming Ko ◽  
Shui-Jinn Wang ◽  
Zhi-Fu Wen ◽  
Jun-Ku Lin ◽  
Ga-Hong Fan ◽  
...  
Keyword(s):  
Tungsten Oxide ◽  
Gas Sensors ◽  
Metal Structure ◽  
Oxide Nanowires
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