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Devices enabling early detection of low concentrations of leaking hydrogen and precision measurements in a wide range of hydrogen concentrations in hydrogen storage systems are essential for the mass-production of fuel-cell vehicles and,…

Materials Science · Physics 2021-12-15 Ivan S. Maksymov , Mikhail Kostylev

The use of hydrogen as a clean and renewable alternative to fossil fuels requires a suite of flammability mitigating technologies, particularly robust sensors for hydrogen leak detection and concentration monitoring. To this end, we have…

Low concentration hydrogen gas detection is of paramount importance both in space applications as well as medical applications. It is also critically important for safe handling of hydrogen below the explosive limit. Here, we report a novel…

Highly stable ozone and hydrogen sensing elements were fabricated based on well-crystalline rounded cube-shaped CsPbBr$_3$ submicron crystals, synthesized by a facile solution process performed under ambient conditions. It is shown that…

Gas identification is one of the most important functions of gas sensor systems. To identify gas species from sensing signals, however, gas input patterns (e.g. the gas flow sequence) must be controlled or monitored precisely with…

Applied Physics · Physics 2019-07-24 Gaku Imamura , Kota Shiba , Genki Yoshikawa , Takashi Washio

Pd nanoalloys show great potential as hysteresis-free, reliable hydrogen sensors. Here, a multi-scale modeling approach is employed to determine optimal conditions for optical hydrogen sensing using the Pd-Au-H system. Changes in hydrogen…

Hydrogen detection is of great importance in chemical and energy industries. Optical fiber hydrogen sensors show flexibility and compactness and have the potential for distributed analysis. However, traditional fiber sensors encounter a…

Optics · Physics 2019-05-16 F. Yang , Y. Zhao , Y. Qi , Y. Z. Tan , H. L. Ho , W. Jin

Accurate state-of-charge (SOC) estimation is essential for optimizing battery performance, ensuring safety, and maximizing economic value. Conventional current and voltage measurements, however, have inherent limitations in fully inferring…

Systems and Control · Electrical Eng. & Systems 2025-06-25 Xiaolei Bian , Changfu Zou , Björn Fridholm , Christian Sundvall , Torsten Wik

Field sensor networks have important applications in environmental monitoring, particularly climate change, air, water and soil quality, in disaster monitoring and in border security. The reduced cost of electronics, sensors and actuators…

Applied Physics · Physics 2017-10-10 Jekan Thangavelautham , Daniel Strawser , Steven Dubowsky

An ideal material for on-board hydrogen storage must release hydrogen at practical temperature and pressure and also regenerate efficiently under similarly gentle conditions. Therefore, thermodynamically, the hydride material must lie…

Materials Science · Physics 2015-05-18 T. A. Abtew , Bi-ching Shih , Pratibha Dev , Vincent H. Crespi , Peihong Zhang

We report on hydrazine-sensing organic electrochemical transistors (OECTs) with a design consisting in concentric annular electrodes. The design engineering of these OECTs was motivated by the great potential of using OECT sensing arrays in…

Applied Physics · Physics 2018-01-17 S Pecqueur , S Lenfant , D Guerin , F Alibart , D Vuillaume

On the way to advance the sensing technology, various strategies based on the nano-materials have been introduced to improve the performance of the gas sensors. In this study, we have introduced a facile fabrication procedure for annealing…

Instrumentation and Detectors · Physics 2023-03-01 Hamed Aleebrahim Dehkordi , Ali Mokhtari , Vishtasb Soleimanian , Mohsen Ghasemi

Electrostatic sensing technology is widely utilized in both military and civilian applications, including electrostatic prevention in gas stations and various electronic devices. The high sensitivity of electrostatic sensor is capable to…

Materials Science · Physics 2017-10-31 Wenhui Wang , Ruxia Du , Linping He , Weiwei Zhao , Yunfei Chen , Junpeng Lu , Zhenhua Ni

Water level monitoring is critical for flood management, water resource allocation, and ecological assessment, yet traditional methods remain costly and limited in coverage. This work explores radar-based sensing as a low-cost alternative…

Robotics · Computer Science 2026-01-08 Anna Zavei-Boroda , J. Toby Minear , Kyle Harlow , Dusty Woods , Christoffer Heckman

Luminescence-based sensors for measuring oxygen concentration are widely used both in industry and research due to the practical advantages and sensitivity of this type of sensing. The measuring principle is the luminescence quenching by…

Signal Processing · Electrical Eng. & Systems 2020-08-31 Umberto Michelucci , Michael Baumgartner , Francesca Venturini

Here we demonstrate that significant progress in this area may be achieved by introducing structural elements that form hydrogen bonds with environment. Considering several examples of hybrid framework materials with different structural…

Bacterial sensor systems can be used for the detection and measurement of molecular signal concentrations. The dynamics of the sensor directly depend on the biological properties of the bacterial sensor cells; manipulation of these features…

Molecular Networks · Quantitative Biology 2024-06-26 Florian Anderl , Gabriela Salvadori , Mladen Veletic , Fernanda Cristina Petersen , Ilangko Balasingham

Hydrogen is key in reducing greenhouse gas emissions in materials production. At the same time, it significantly affects mechanical properties, often causing unwanted embrittlement. However, rather than solely addressing these…

Band alignment, namely the prediction of band-edge positions of semiconductors and insulators in aqueous solutions, is an important problem in physics and chemistry. Such a prediction is especially challenging for structurally and…

Materials Science · Physics 2026-03-24 Khang Hoang

With the increasing number of IoT devices, there is a growing demand for energy-free sensors. Human activity recognition holds immense value in numerous daily healthcare applications. However, the majority of current sensing modalities…

Signal Processing · Electrical Eng. & Systems 2023-08-11 Kaede Shintani , Hamada Rizk , Hirozumi Yamaguchi
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