Proceedings, Volume 14, Issue 1

Abstract: Metal oxide semiconductor gas sensors are used in a various applications in environmental, industrial and medical field, for instance. They are relatively inexpensive compared to other sensing technologies, robust, lightweight, long lasting...

To date, there are only a few studies on the gas sensing properties of single crystalline sensors. […]

SMOX-based sensors appeared as a response to a very serious safety issue in Japan, namely gas explosion accidents related to leakages of piped and bottled cooking gas. […]

The article describes the result of the use SnO₂-Pd thin films as a gate for structure measured ppb range of NO₂ gas by the capacitive method. The technological aspects of fabrication SnO₂-Pd gate and one comparison by metrological parameters with th...

Gas sensor as a device composed of sensing material coupled with signal transducer, has been acknowledged as an analytical tool for detection and quantification of inflammable, explosive or toxic gases. The gas sensors based on nanostructured oxide s...

Herein, formaldehyde sensors based on gallium-doped In₂O₃ inverse opal [...]

Electronic Olfactory Systems, also called Electronic Noses, are instruments designed to mimic the sense of smell. […]

Gas species recognition through fully optical devices is currently a raising trend over the wellestablished
conductometric approach [...]

Rare-earth oxycarbonates have been proposed as promising chemoresistive materials for CO₂ sensors. In this contribution we present the results of a broad investigation focused on selecting the best candidates in the rare-earth compounds and, in the c...

Hydrogen sulfide (H2S) is a colorless, highly flammable and toxic gas. It is produced due to
industrial activities including petroleum refineries [...]

We present flexible chemo-resistive sensors based on AACVD grown tungsten trioxide (WO₃) nanowires. The sensor response to gases, before and after a 50-cycle bending test, is reported. Thus, proving that reliable gas sensors, able to withstand repeat...

Within this work the advantages of Rheotaxial Growth and Vacuum Oxidation i.e. maximal
extension of internal surfaces, small degree of nanograins [...]

Atomic layer deposition (ALD) is a chemical vapor deposition (CVD) deposition method in
which high-quality [...]

In the last years we have been interested to study the interplay of light and gas sensitivity in hybrid materials formed by porphyrins grafted onto ZnO nanostructures. [...]

Metal Oxide (MOx) sensors have been the subject of intense research and development over the
years, and are widely used in industrial and commercial sensing applications [...]

This study addresses the development of a miniaturized wireless sensing module (electronic nose) for a personal use in air quality detection. [...]

High sensitivity and low limit of detection to volatile organic compounds (VOCs) gases are typical properties on the resistive-type semiconductor gas sensors using SnO₂-based materials. […]

This work presents a practical application of an electronic nose to fast and efficient discrimination of different species of Amanita mushrooms. The electronic nose instrument were utilized for investigation of discrimination capability with respect...

Hydrogen sulfide (H₂S) is known as a colorless, flammable and highly toxic gas with strong odor. […]

The demand for reliable devices to detect tumor biomarkers in human body is constantly
increasing [...]

The work is aimed at creating ZnO/SiC composites for resistive type gas sensors towards main
components of exhaust gases [...]

The adsorption and desorption of oxygen molecule on the surface of oxide semiconductors are the basis for sensing reactions between the surface oxygen species and the target gases molecules. Combined with experiments and theoretical calculations, we...

Semiconductor functional materials play an increasingly important role in science and technology because of their unique optical, electrical, magnetic, catalytic and chemical properties. They are widely used in fields such as solar cell, photo-cataly...

Colorectal cancer (CRC) preventive screening is fundamental to identify tumors before their possible degeneration. [...]

Water vapor is the most important factor to influence on gas sensing properties. […]

Formaldehyde HCOH is a toxic compound that, in trace concentrations, causes serious diseases
of the respiratory tract, gastrointestinal tract and eyes [...]

The Montreal Protocol on Substances that Deplete the Ozone Layer entered into force in 1989. […]

Parmigiano Reggiano (PR) cheese is a long-ripened hard cheese made in Northern Italy registered as a Protected Designation of Origin (PDO) in the European Union. [...]

Gas detectors have constantly been developed over the few last decades as a result of
industrial demands: for monitoring air quality [...]

The Internet of Everything (IoE) refers to billions of objects having intelligent connections with processed data. Sensors hold the key to the IoE as they detect and assess the internal and external states of objects. [...]

Zinc oxide (ZnO) nanostructures can be grown in different morphologies by means of a wide range of techniques. […]

III-nitride semiconductors (AlGaN, GaN and InGaN) have received considerable attention in various fields ranging from high-frequency and high-temperature electronics [1] to LED lighting technologies [2]. [...]

Nanocrystalline LaCoO₃ was synthesized by sol-gel method and functionalized by Ag
nanoparticles via impregnation [...]

Industrial pollution and traffic emissions emit dangerous amounts of O₃, NO₂, VOCs and PM into environment, bringing higher incidence of morbidity and mortality in respiratory sicknesses [1]. [...]

Chemical gas sensors were studied long ago and nowadays, for the advantageous role they provide to the environment, health condition monitoring and protection. The recent studies focus on the semiconductors sensing abilities, especially of non toxic...

Convenient and scalable single step flame spray pyrolysis (FSP) synthesis of bimetal AuPd sensitized nanocrystalline SnO₂ for gas sensor application is reported. The materials chemical composition, structure and morphology has been studied by XRD, XP...

Selective detection of hydrocarbons – methane and propane – in urban air for industrial safety properties by single metal oxide semiconductor gas sensor has been demonstrated. As sensors were fabricated on the basis of nanocrystalline SnO₂ and alumin...

In this work Ga doped ZnO thin films have been deposited by RF magnetron sputtering onto a silicon micro-hotplate and their structural, microstructural and gas sensing properties have been studied. ZnO:Ga thin film with a thickness of 50 nm has been...

In this work, a new generation of gas sensing systems specially designed for breath analysis is presented. The developed system comprises a compact modular, low volume, temperature-controlled sensing chamber with three compartments that can host diff...

A worldwide unique CMOS based chemical sensor device comprising an array of 8 microhotplates (µhps) for a total of 16 chemical sensors has been fabricated (Figure 1). [...]

The performance of a metal oxide gas sensor can be affected by different parameters as the fabrication process of the sensitive layer or the post-annealing treatment. [...]

In this contribution we present a highly miniaturized device that integrates a photoactive material with a highly efficient LED light source. This so-called micro light plate configuration (µLP) allows for maximizing the irradiance impinging on the p...

Morphological control of metal oxide (MO) is important for enhancement of sensing properties such as sensor response and response-recovery characteristics. [...]

The semiconductor type sensor developed by New Cosmos is a very unique sensor depending on its principle and structure.[...]

Understanding the mode of operation of metal-oxide gas sensors (e.g., SnO₂, In₂O₃) is of great scientific and economic interest. [...]

This report summarizes our recent work on a p-type/n-type Multi-MOx gas sensor platform for simultaneously measuring oxidizing and reducing gases.

Gas sensor based on perovskites, such as LaFeO₃ (LFO), have been used successfully to detect various target gases [1,2]. […]

The use of computer simulations for performance predictions has become almost essential.[...]

One of the greatest goals in medicine is early-stage detection of tumors, to allow physicians and surgeons to apply the available therapies, which are usually successful on small volume cancers only. [...]

By laser micromilling technology it is possible to fabricate custom MEMS microhotplate platform and also SMD package for MOX sensor, that gives complete solution for integration in mobile devices-smart phones, tablets and etc. The 3D design and fabri...