Highly sensitive gas detecting devices are of significant importance in various applications such as environmental air quality monitoring or occupational safety and health. In the last decades considerable advances have been made in the development of conductometric metal oxide gas sensors and in optimization of sensor performance regarding sensitivity and selectivity. Traditional metal oxide b...

In this work, a new poly (3-hexylthiophene):1.00 mol% Au-loaded zinc oxide nanoparticles (P3HT:Au/ZnO NPs) hybrid sensor is developed and systematically studied for ammonia sensing applications. The 1.00 mol% Au/ZnO NPs were synthesized by a one-step flame spray pyrolysis (FSP) process and mixed with P3HT at different mixing ratios (1:1, 2:1, 3:1, 4:1, and 1:2) before drop casting on an Al2O3 s...

Thick film technology is known to be a widely used tool for the fabrication of electronic circuits. It is normally based on the screen-printing and firing of various pastes differing in composition and electrical properties under different firing temperature. They are then classified as conductor, resistor, dielectric, and soldering pastes.1 Recently, the application of thick film technology ha...

Along with high sensitivity in detecting gas, the response and recovery times of semiconductor gas sensors are of considerable importance for real life applications. In most cases, the recovery time is more than the response time. At the same time, water vapor present in the ambient, is chemisorbed on the tin oxide, SnO2 surface and the water molecules dissociate into hydroxyl species, which ac...

We present a rapid low-cost process for fabrication of screen-printed carbon thick-film strain sensors with 0.012% strain resolution. The sensors are suitable for implantation and designed specifically for strain or fullness measurements of the skin and bladder, respectively. Thick-film carbon paste sensors are screen-printed using an etched brass screen onto polydimethylsiloxane (PDMS) and enc...

Nowadays, ceramic exhaust gas sensors are installed in quantities of millions in automotive exhaust gas systems. Almost any automobile being powered by a gasoline combustion engine is equipped with at least one zirconia exhaust gas oxygen sensor (l probe) for detection of the air-to-fuel ratio l. The first part of this short overview focuses on potentiometric as well as on amperometric zirconia...