Fabrication of a gas sensor array with micro-wells for VOCs gas sensing based on polymer/carbon nanotube thin films

2014 ◽  
Author(s):  
Guangzhong Xie ◽  
Tao Xie ◽  
Tao Zhu ◽  
Yadong Jiang ◽  
Huiling Tai
Keyword(s):  
Thin Films ◽  
Carbon Nanotube ◽  
Gas Sensor ◽  
Sensor Array ◽  
Gas Sensing ◽  
Gas Sensor Array

scholarly journals 100 nm-Gap Fingers Dielectrophoresis Functionalized MOX Gas Sensor Array for Low Temperature VOCs Detection

Proceedings ◽  
2018 ◽  
Vol 2 (13) ◽  
pp. 1027
Author(s):  
Luca Francioso ◽  
Pasquale Creti ◽  
Maria Concetta Martucci ◽  
Simonetta Capone ◽  
Antonietta Taurino ◽  
...  
Keyword(s):  
Low Temperature ◽  
Gas Sensor ◽  
Sensor Array ◽  
Gas Sensing ◽  
Enhanced Sensitivity ◽  
Sno2 Nanocrystals ◽  
Gas Sensor Array ◽  
Order Of Magnitude ◽  
Nanogap Electrodes ◽  
Average Size

Present work reports the fabrication process and functional gas sensing tests of a 100 nm-gap fingers DiElectroPhoresis (DEP) functionalized MOX (Metal OXide) gas sensor array for VOCs detection at low temperature. The Internet of Things (IoT) scenario applications of the chemical sensing-enabled mobiles or connected devices are many ranging from indoor air quality to novel breath analyser for personal healthcare monitoring. However, the commercial MOX gas sensors operate at moderate temperatures (200–400 °C) [1], and this limits the mobile and wearable gadgets market penetration. Nanogap devices may represent the alternative devices with enhanced sensitivity even at low or room temperature. A nanogap electrodes MOX gas sensor array functionalized with 5 nm average size SnO2 nanocrystals with positive dielectrophoresis technique is presented. The single sensor active area is 4 × 4 µm2. The devices exhibited about 1 order of magnitude response at 100 °C to 150 ppm of acetone.

Type discrimination and concentration prediction towards ethanol using a machine learning–enhanced gas sensor array with different morphology-tuning characteristics

2021 ◽  
Author(s):  
Tao Wang ◽  
Hongli Ma ◽  
Wenkai Jiang ◽  
Hexin Zhang ◽  
Min Zeng ◽  
...  
Keyword(s):  
Machine Learning ◽  
Gas Sensor ◽  
Sensor Array ◽  
Gas Sensing ◽  
Hierarchical Structures ◽  
Machine Learning Algorithms ◽  
Microwave Assisted ◽  
Gas Sensor Array ◽  
Microwave Assisted Method ◽  
Concentration Prediction

Microwave-assisted method has been developed to synthesize ZnO gas sensing nanomaterials with controllable hierarchical structures. Machine learning algorithms such as PCA, SVM, ELM, and BP further improve the selectivity and quantitation.

Sensitive, selective and stable tin dioxide thin-films for carbon monoxide and hydrogen sensing in integrated gas sensor array applications

2001 ◽  
Vol 72 (2) ◽  
pp. 160-166 ◽  
Author(s):  
Rajnish K Sharma ◽  
Philip C.H Chan ◽  
Zhenan Tang ◽  
G Yan ◽  
I-Ming Hsing ◽  
...  
Keyword(s):  
Thin Films ◽  
Carbon Monoxide ◽  
Gas Sensor ◽  
Sensor Array ◽  
Tin Dioxide ◽  
Hydrogen Sensing ◽  
Gas Sensor Array

scholarly journals Development of Gas Sensor Array based on Phthalocyanines Functionalized TiO2/ZnO Heterojunction Thin Films

Proceedings ◽  
2018 ◽  
Vol 2 (13) ◽  
pp. 1042
Author(s):  
Jareena Begam Jakir Hussain ◽  
Sarathbavan Murugan ◽  
Gabriele Magna ◽  
Venkatramaiah Nutalapati ◽  
Surya Velappa Jayaraman ◽  
...  
Keyword(s):  
Thin Films ◽  
Optical Properties ◽  
Sensor Array ◽  
Gas Sensing ◽  
Relative Sensitivity ◽  
Light Conditions ◽  
Gas Sensor Array ◽  
Wide Range ◽  
Gas Sensing Properties ◽  
Volatile Organic

Gas sensing properties of diverse phthalocyanines functionalized TiO2/ZnO heterojunction thin films were investigated respect to a number of volatile organic compounds (VOCs) in both dark and light conditions. These studies showed that influence of heterojunction along with functionalization alter the optical properties and gas sensing of sensors. Results show that each sensor exhibits a different pattern of relative sensitivity, and this feature can be used to discriminate among a wide range of VOCs.

Carbon nanotube gas sensor array for multiplex analyte discrimination

2015 ◽  
Vol 207 ◽  
pp. 833-842 ◽  
Author(s):  
Hoël Guerin ◽  
Hélène Le Poche ◽  
Roland Pohle ◽  
Elizabeth Buitrago ◽  
Montserrat Fernández-Bolaños Badía ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Gas Sensor ◽  
Sensor Array ◽  
Gas Sensor Array

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.

scholarly journals LOCATING GAS SOURCES USING A GAS SENSOR ARRAY

1991 ◽  
Vol 7 (Supple) ◽  
pp. 1565-1568 ◽  
Author(s):  
Yukio Hiranaka ◽  
Hiro Yamasaki
Keyword(s):  
Gas Sensor ◽  
Sensor Array ◽  
Gas Sensor Array

Identification and detection of bioactive compounds in turmeric (Curcuma longa L.) using gas sensor array based on molecularly imprinted polymer quartz crystal microbalance

2021 ◽  
Author(s):  
Fajar IAIN Hardoyono ◽  
Kikin Windhani
Keyword(s):  
Gas Sensor ◽  
Bioactive Compounds ◽  
Quartz Crystal Microbalance ◽  
Molecularly Imprinted Polymer ◽  
Quartz Crystal ◽  
Sensor Array ◽  
Curcuma Longa ◽  
Imprinted Polymer ◽  
Molecularly Imprinted ◽  
Gas Sensor Array

This study aimed to identify four bioactive compounds in turmeric (Curcuma longa L.) using gas sensor array based on molecularly imprinted polymer-quartz crystal microbalance (MIP-QCM). Four QCM sensors coated with...

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