Theoretical study of carbon-nanotube-based gas pressure sensors

2011 ◽  
Vol 109 (1) ◽  
pp. 014318 ◽  
Author(s):  
S. B. Tooski
Keyword(s):  
Carbon Nanotube ◽  
Theoretical Study ◽  
Pressure Sensors ◽  
Gas Pressure

Ultrasensitive, flexible, and low-cost nanoporous piezoresistive composites for tactile pressure sensing

Nanoscale ◽  
2019 ◽  
Vol 11 (6) ◽  
pp. 2779-2786 ◽  
Author(s):  
Jing Li ◽  
Santiago Orrego ◽  
Junjie Pan ◽  
Peisheng He ◽  
Sung Hoon Kang
Keyword(s):  
Carbon Nanotube ◽  
Polymer Composites ◽  
Low Cost ◽  
Pressure Sensors ◽  
Nanoporous Carbon ◽  
Pressure Sensing ◽  
Etching Method ◽  
Piezoresistive Pressure Sensors

We report a facile sacrificial casting–etching method to synthesize nanoporous carbon nanotube/polymer composites for ultra-sensitive and low-cost piezoresistive pressure sensors.

Influence of the gas pressure on single-wall carbon nanotube formation

Carbon ◽  
2005 ◽  
Vol 43 (12) ◽  
pp. 2453-2462 ◽  
Author(s):  
I. Hinkov ◽  
S. Farhat ◽  
C.D. Scott
Keyword(s):  
Carbon Nanotube ◽  
Gas Pressure ◽  
Single Wall Carbon Nanotube ◽  
Single Wall Carbon

scholarly journals Theoretical Study of Plasma Using Different Dimension of Hollow Cathode

2019 ◽  
Vol 5 (1) ◽  
pp. 30-34
Author(s):  
L. N. Mishra ◽  
K. Khanal
Keyword(s):  
Glow Discharge ◽  
Hollow Cathode ◽  
Theoretical Study ◽  
Plasma Processing ◽  
Theoretical Work ◽  
Plasma Potential ◽  
Gas Pressure ◽  
Floating Potential ◽  
Discharge Behavior

This article deals about the theoretical study on DC hollow cathode glow discharge using different hollow cathode geometry. The mechanism of discharge is analyzed at various gas pressure and radial configuration. The dependence of temperature on gas pressure has been elucidated with the help of Scotty limit. Discharge behavior with radius has also been explained. It is revealed that floating potential increases as gas pressure increases whereas plasma potential decreases as gas pressure increases. This theoretical work resembles with the experimentally measured results. This work might be useful for the plasma processing for industrial purposes.

High-sensitivity gas pressure sensors based on in-fiber devices

2015 ◽  
Author(s):  
Yiping Wang ◽  
Changrui Liao ◽  
Shen Liu ◽  
Bing Sun ◽  
Zhengyong Li ◽  
...  
Keyword(s):  
Pressure Sensors ◽  
High Sensitivity ◽  
Gas Pressure ◽  
Fiber Devices

Theoretical study of heat conduction in carbon nanotube hetero-junctions

2010 ◽  
Vol 374 (17-18) ◽  
pp. 1860-1865 ◽  
Author(s):  
Cuilan Ren ◽  
Zijian Xu ◽  
Wei Zhang ◽  
Yong Li ◽  
Zhiyuan Zhu ◽  
...  
Keyword(s):  
Heat Conduction ◽  
Carbon Nanotube ◽  
Theoretical Study

scholarly journals Highly-Sensitive Textile Pressure Sensors Enabled by Suspended-Type All Carbon Nanotube Fiber Transistor Architecture

Micromachines ◽  
2020 ◽  
Vol 11 (12) ◽  
pp. 1103
Author(s):  
Jae Sang Heo ◽  
Keon Woo Lee ◽  
Jun Ho Lee ◽  
Seung Beom Shin ◽  
Jeong Wan Jo ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Pressure Sensor ◽  
Pressure Range ◽  
Pressure Sensors ◽  
High Sensitivity ◽  
Low Pressure ◽  
Electronic Textiles ◽  
Carbon Nanotube Fiber ◽  
Cnt Fiber ◽  
Walled Carbon Nanotubes

Among various wearable health-monitoring electronics, electronic textiles (e-textiles) have been considered as an appropriate alternative for a convenient self-diagnosis approach. However, for the realization of the wearable e-textiles capable of detecting subtle human physiological signals, the low-sensing performances still remain as a challenge. In this study, a fiber transistor-type ultra-sensitive pressure sensor (FTPS) with a new architecture that is thread-like suspended dry-spun carbon nanotube (CNT) fiber source (S)/drain (D) electrodes is proposed as the first proof of concept for the detection of very low-pressure stimuli. As a result, the pressure sensor shows an ultra-high sensitivity of ~3050 Pa−1 and a response/recovery time of 258/114 ms in the very low-pressure range of <300 Pa as the fiber transistor was operated in the linear region (VDS = −0.1 V). Also, it was observed that the pressure-sensing characteristics are highly dependent on the contact pressure between the top CNT fiber S/D electrodes and the single-walled carbon nanotubes (SWCNTs) channel layer due to the air-gap made by the suspended S/D electrode fibers on the channel layers of fiber transistors. Furthermore, due to their remarkable sensitivity in the low-pressure range, an acoustic wave that has a very tiny pressure could be detected using the FTPS.

Effect of Gas Pressure on Electron Field Emission from Carbon Nanotube Forests

2010 ◽  
Vol 10 (10) ◽  
pp. 6575-6579 ◽  
Author(s):  
Z. L. Tsakadze ◽  
K. Ostrikov ◽  
C. H. Sow ◽  
S. G. Mhaisalkar ◽  
Y. C. Boey
Keyword(s):  
Carbon Nanotube ◽  
Field Emission ◽  
Gas Pressure ◽  
Electron Field Emission ◽  
Electron Field ◽  
Carbon Nanotube Forests
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