Topic
Oxygen sensor
About: Oxygen sensor is a research topic. Over the lifetime, 3913 publications have been published within this topic receiving 46467 citations. The topic is also known as: lambda sensor.
Papers published on a yearly basis
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Papers
TL;DR: In this article, the authors comprehensively review the structures, thermal expansion, phase transitions, electrical conductivity and stability of bismuth oxide and doped Bismuth Oxide systems and show that they exhibit a complex array of structures and properties depending upon the dopant concentration, temperature and atmosphere.
Abstract: Bismuth oxide systems exhibit high oxide ion conductivity and have been proposed as good electrolyte materials for applications such as solid oxide fuel cells and oxygen sensors. However, due to their instability under conditions of low oxygen partial pressures there has been difficulty in developing these materials as alternative electrolyte materials compared to the state-of-the-art cubic stabilised zirconia electrolyte. Bismuth oxide and doped bismuth oxide systems exhibit a complex array of structures and properties depending upon the dopant concentration, temperature and atmosphere. In this paper we comprehensively review the structures, thermal expansion, phase transitions, electrical conductivity and stability of bismuth oxide and doped bismuth oxide systems. ©
674 citations
TL;DR: In this paper, the authors focus on both high temperature as well as dissolved oxygen sensors and compare the different methods of oxygen sensing, discuss underlying principles, and outline the designs and specific applications.
Abstract: Advancement of gas sensor technology over the past few decades has led to significant progress in pollution control and thereby, to environmental protection An excellent example is the control of automobile exhaust emissions, made possible by the use of oxygen gas sensors Since early 1970's there have been sustained studies on oxygen sensors and has led to development of sensors for various applications with varying performance characteristics Solid electrolyte based potentiometric, amperometric and metal oxide based semiconducting resistive type sensors are used for high temperature applications For solution-based pollution monitoring, dissolved oxygen sensors based on Clark electrodes have played a major role More recently, for biological and medical applications, optical oxygen sensors are beginning to have an impact In this review, we focus on both high temperature as well as dissolved oxygen sensors and compare the different methods of oxygen sensing, discuss underlying principles, and outline the designs and specific applications
517 citations
TL;DR: The properties of various oxygen permeable polymers for matrix of optical oxygen sensor and various dye probes for oxygen sensing are described in this article, where the properties of polycyclic aromatic hydrocarbons and metalloporphyrins are compared.
Abstract: Oxygen detection techniques are used in various fields, such as chemical or clinical analysis and environmental monitoring. Recently, a variety of devices and sensors based on photo-luminescent or photoexcited state quenching of organic dyes have been developed to measure oxygen partial pressure on the solid surface. Many optical oxygen sensors are composed of organic dyes, such as polycyclic aromatic hydrocarbons (pyrene, pyrene derivative etc.), transition metal complexes (Ru2+, Os2+, Ir3+ etc.), metalloporphyrins (Pt2+, Pd2+, Zn2+ etc.) and fullerene (C60 and C70) immobilized in oxygen permeable polymer films. In this review, the properties of various oxygen permeable polymers for matrix of optical oxygen sensor and various dye probes for oxygen sensing are described.
459 citations
TL;DR: In this article, an overview on ZrO 2 automotive exhaust gas sensors, the development steps of thimble-type oxygen sensors and the technology and design of planar type oxygen sensors are described.
420 citations
TL;DR: In this paper, the use of perovskite oxides in semiconductor-based gas sensors is discussed, with the most common oxide used in such sensors being tin oxide, although other simple oxides and some mixed oxides, are also used.
Abstract: The oxygen partial pressure dependence of the point defect concentration, and thus conductivity, in oxide semiconductors allows for their use in high-temperature gas sensors. In addition to responding to oxygen partial pressure, the resistance of oxide semiconductors can be affected by other gases, such as carbon monoxide, hydrocarbons and ethanol, which creates opportunities for developing new sensors, but also leads to interference problems. The most common oxide used in such sensors is tin oxide, although other simple oxides, and some mixed oxides, are also used. The focus of this paper is on the use of perovskite oxides in semiconductor-based gas sensors. The perovskite structure, with two differently-sized cations, is amenable to a variety of dopant additions. This flexibility allows for control of the transport and catalytic properties, which are important for improving sensor performance.
411 citations
Related Topics (5)
Performance Metrics
| Year | Papers |
|---|---|
| 2025 | 21 |
| 2024 | 29 |
| 2023 | 51 |
| 2022 | 72 |
| 2021 | 44 |
| 2020 | 68 |