Sensors & Transducers Journal (ISSN 1726-5479) is a peer review international journal published monthly online by International Frequency Sensor Association (IFSA). Available in electronic and CD-ROM. Abstract: Porous silicon (PS) sensor based on capacitive technique used for measuring relative humidity has the advantages of low cost, ease of fabrication with controlled structure and CMOS compa...

In this study, a high-sensitivity and low-hysteresis porous metal-insulator-metal-type capacitive humidity sensor is investigated using a functional polymer mixed with TiO2 microparticles. The humidity sensor consists of an optimally designed porous top electrode, a functional polymer humidity sensitive layer, a bottom electrode, and a glass substrate. The porous top electrode is designed to in...

Exhaled breath analysis is a noninvasive diagnostic method for fatal disease monitoring and screening, which recently gained extensive interest of researchers worldwide emphasizing on the development effective chemiresistive gas sensor practical application. Here, Ag-Pt bimetallic nanoparticles were used to decorate nanofilms SnO2 making different sensors with high performance. We found that bi...

A humidity sensor thin film based on nanoporous PbWO4-WO3 composites has been prepared by spin coating technique with different weight ratio of PbWO4 (Pb) and WO3 (WO) (PWWO-01, PWWO-82, PWWO-64, PWWO-46, PWWO-28, PWWO-01) and their humidity sensing properties have also been investigated at different relative humidity (RH) in the range of 5% - 98% at room temperature with dc resistance. It is f...

A biomimetic sensor based on an Ag electrode and a smart material TPhPFe3+/Al2O3 has been developed. It found that sensor, where (Ag) is used as electrode, exhibits high sensitivity, stability reproducibility. study was carried out to detect trace concentrations of H2O2 in aqueous solution TPhPFe3+/Al2O3//Ag sensor. For the sensitivity threshold 10-8 wt.%

This study presents the fabrication and characterization of a humidity microsensor that consists of interdigitated electrodes and a sensitive film. The area of the humidity microsensor is about 2 mm(2). The sensitive film is polyaniline doping polyvinyl alcohol (PVA) that is prepared by the sol-gel method, and the film has nanofiber and porous structures that help increase the sensing reaction....

A fully-integrated complementary metal-oxide semiconductor (CMOS) sensor for combined temperature and humidity measurements is presented. The main purpose of the device is to monitor the hermeticity of micro-packages for implanted integrated circuits and to ensure their safe operation by monitoring the operating temperature and humidity on-chip. The smart sensor has two modes of operation, in w...

Silver-zinc (Ag–Zn) batteries are a promising battery system for flexible electronics owing to their high safety, energy density, and stable output voltage. However, poor cycling performance, low areal capacity, inferior flexibility limit the practical application of Ag–Zn batteries. Herein, we develop quasi-solid-state with superior performance by using mild electrolyte binder-free electrodes....

The measurement of water vapour concentration in the atmosphere is an ongoing challenge in environmental research. Satisfactory solutions exist for ground-based meteorological stations and measurements of mean values. However, carrying out advanced research of thermodynamic processes aloft as well, above the surface layer and especially in the atmospheric boundary layer (ABL), requires the reso...

Incidents of injuries caused by tiles falling from building exterior walls are frequently reported in Taiwan. Humidity is an influential factor in tile deterioration but it is more difficult to measure the humidity inside a building structure than the humidity in an indoor environment. Therefore, a separable microsensor was developed in this study to measure the humidity of the cement mortar la...