Electrical Conductivity, Isothermal Stability, and Ammonia-Sensing Performance of Newly Synthesized and Characterized Organic–Inorganic Polycarbazole–Titanium Dioxide Nanocomposite

This research studies the properties of titanium dioxide (TiO2) nanoparticles synthesized by two different stabilizers via sol-gel method. Acetic and hydrochloric acids have been used as stabilizers to form two different TiO2 thin films. 100 μm gap of Al IDEs have been fabricated on each annealed TiO2 films. Finally the samples were physically and electrically characterized. Average crystallite sizes of the nanoparticles are 20 and 25 nm for acetic and hydrochloric acid respectively. The average current flow through the devices was extremely small which are around micro-to-nanoampere. It was found that the electrical conductivity increased significantly when particle sizes decreases.

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Low concentration ammonia sensing performance of Pd incorporated indium tin oxide

Journal of Alloys and Compounds ◽

10.1016/j.jallcom.2018.11.201 ◽

2019 ◽

Vol 780 ◽

pp. 245-255 ◽

Cited By ~ 6

Author(s):

Susmita Kundu ◽

Amit Kumar

Keyword(s):

Tin Oxide ◽

Indium Tin Oxide ◽

Low Concentration ◽

Ammonia Sensing ◽

Sensing Performance

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ChemInform Abstract: EFFECT OF WATER VAPOR ON THE ELECTRICAL CONDUCTIVITY OF TITANIUM DIOXIDE

Chemischer Informationsdienst ◽

10.1002/chin.197723012 ◽

1977 ◽

Vol 8 (23) ◽

pp. no-no

Author(s):

K. HAUFFE ◽

H. RAVELING ◽

D. REIN

Keyword(s):

Electrical Conductivity ◽

Titanium Dioxide ◽

Water Vapor ◽

Effect Of Water

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Synthesis and electrical conductivity evaluation of novel hybrid poly (methyl methacrylate)/titanium dioxide nanowires

Synthetic Metals ◽

10.1016/j.synthmet.2011.07.011 ◽

2011 ◽

Vol 161 (19-20) ◽

pp. 2063-2069 ◽

Cited By ~ 31

Author(s):

Ahmed A. Haroun ◽

Ahmed M. Youssef

Keyword(s):

Electrical Conductivity ◽

Titanium Dioxide ◽

Methyl Methacrylate ◽

Poly Methyl Methacrylate

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Design and Fabrication of Micro Oxygen Sensor

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.483.237 ◽

2011 ◽

Vol 483 ◽

pp. 237-242

Author(s):

Chia Yen Lee ◽

Long Kai Lin Liou ◽

Chin Lung Chang ◽

Chang Hsing Tai ◽

Lung Ming Fu

Keyword(s):

Thin Film ◽

Electrical Conductivity ◽

Gas Sensor ◽

Oxygen Sensor ◽

Rf Sputtering ◽

Experimental Results ◽

Surface Pattern ◽

Working Temperature ◽

Measured Resistance ◽

Sensing Performance

In the study, a MEMS-based gas sensor is presented, which consists of a sensing thin film deposited by RF sputtering and annealed at 375°C. The structure and surface pattern of the thin film are analyzed by XRD and SEM. The sensor consists of a substrate, Pt interdigitated electrodes and an SnO2 sensing layer. As concentration of oxygen changes, a change in the electrical conductivity of the SnO2 film is caused. The experimental results show that the measured resistance increases as the concentration of oxygen increases at a working temperature of 300°C. A good oxygen sensing performance is presented in the study.

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