Study of gas sensor with carbon nanotube film on the substrate of porous silicon

2002 ◽  
Author(s):  
Yong Zhang ◽  
Junhua Liu ◽  
Xin Li ◽  
Juying Dou ◽  
Weihua Liu ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Porous Silicon ◽  
Gas Sensor ◽  
Carbon Nanotube Film

A Two-Component Gas Analyzer Based on Self-Sustaining Dark Discharge Carbon Nanotube Film Cathode Gas Sensor

2010 ◽  
Vol 121-122 ◽  
pp. 188-191
Author(s):  
Ji Peng Lin ◽  
Jun Hua Liu
Keyword(s):  
Support Vector Machine ◽  
Carbon Nanotube ◽  
Gas Sensor ◽  
Support Vector ◽  
Gas Analyzer ◽  
Mixed Gas ◽  
Accuracy Measurement ◽  
Carbon Nanotube Film ◽  
Two Component ◽  
New Type

A new type of cathode gas sensor based on carbon nanotube film is presented to analyze CO and CH4 mixed gas. The structure and measuring principle of breakdown voltages are proposed to build support vector machine nonlinear model. As a result, the max relative error of CO and CH4 is 3.8% and 6.0%, respectively. This hints the sensor acts an accuracy measurement.

Study of improving identification accuracy of carbon nanotube film cathode gas sensor

2005 ◽  
Vol 125 (1) ◽  
pp. 15-24 ◽  
Author(s):  
Zhang Yong ◽  
Liu Junhua ◽  
Li Xin ◽  
Tang Xiaojun ◽  
Zhu Changchun
Keyword(s):  
Carbon Nanotube ◽  
Gas Sensor ◽  
Identification Accuracy ◽  
Carbon Nanotube Film

Carbon Nanotube Gas Sensor Fabricated on Anodic Aluminum Oxide

2007 ◽  
Vol 124-126 ◽  
pp. 1309-1312
Author(s):  
Nguyen Duc Hoa ◽  
Nguyen Van Quy ◽  
Gyu Seok Choi ◽  
You Suk Cho ◽  
Se Young Jeong ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Carbon Nanotube ◽  
Gas Sensor ◽  
Chemical Vapor ◽  
Fast Response ◽  
Device Fabrication ◽  
Alumina Oxide ◽  
Response And Recovery ◽  
New Type ◽  
P Type

A new type of gas sensor was realized by directly depositing carbon nanotube on nano channels of the anodic alumina oxide (AAO) fabricated on p-type silicon substrate. The carbon nanotubes were synthesized by thermal chemical vapor deposition at a very high temperature of 1200 oC to improve the crystallinity. The device fabrication process was also developed. The contact of carbon nanotubes and p-type Si substrate showed a Schottky behavior, and the Schottky barrier height increased with exposure to gases while the overall conductivity decreased. The sensors showed fast response and recovery to ammonia gas upon the filling (400 mTorr) and evacuation.

scholarly journals Simple and rapid gas sensing using a single-walled carbon nanotube field-effect transistor-based logic inverter

2021 ◽  
Author(s):  
Salomé Forel ◽  
Leandro Sacco ◽  
Alice Castan ◽  
Ileana Florea ◽  
Costel Sorin Cojocaru
Keyword(s):  
Carbon Nanotube ◽  
Power Consumption ◽  
Data Processing ◽  
Gas Sensor ◽  
Field Effect ◽  
Field Effect Transistor ◽  
Gas Sensing ◽  
Single Walled Carbon Nanotube ◽  
Effect Transistor ◽  
System Miniaturization

We design a gas sensor by combining two SWCNT-FET devices in an inverter configuration enabling a better system miniaturization together with a reduction of power consumption and ease of data processing.

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