indium oxide ozone sensor

PHOTONIC SENSORS: Ozone sensor integrates LEDs and ...

Dec 01, 2007 · A single-chip ozone sensor integrates ozone-sensing In2O3 nanoparticle thin films with an array of GaInN/GaN blue LEDs (left). When these nanoparticle thin films are illuminated by the blue LEDs, the ozone response increases as a function of the LED optical power (right). Black, red, and blue lines correspond to different ozone concentrations ...

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Indium oxide—a transparent, wide-band gap semiconductor ...

Jan 19, 2015 · The transparent semiconducting oxide (TSO) indium oxide (In 2 O 3) has been investigated for many decades.After brief initial research into its semiconducting properties, however, most effort has been directed towards its widespread application as the transparent conducting oxide (TCO) indium-tin-oxide and to some extent as active gas-sensor material.

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Stratospheric Ozone Detection Using a Photon Stimulated ...

Stratospheric ozone is normally measured using stationary equipments, such as a Dobson spectrometer and filter ozonometer, which have the disadvantages of large size, high price and high cost for operation and maintenance. In this work, a balloon-borne photostimulated ozone sensor based on indium oxide nanoparticles has been developed to measure stratospheric ozone.

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Nano-porous indium oxide transistor sensor for the ...

Nov 12, 2011 · Porous indium oxide thin film prepared by the dip coating technique has been used in the construction of a field effect transistor. The coating solution was prepared from indium chloride precursor. The average particle size of the dip coated thin film was found to be 25 nm. Scanning electron microscopic images show the porous nature of the film, and the root mean square roughness of the …

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Polycrystalline Well-Shaped Blocks of Indium Oxide ...

Aging-induced aggregation of the nanoparticles in the colloidal solution of indium hydroxide leads to the formation of micrometer particles in the form of well-shaped blocks. As shown by high-resolution transmission electron microscopy and selected area electron diffraction, the well-shaped blocks have a polycrystalline nature composed of small nanounits. After calcination at 400 °C, they ...

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Properties of Indium Oxide Semiconducting Sensors ...

Semiconducting In2O3 gas sensors have been fabricated by two different deposition techniques, i.e., spin-coating and screen-printing. In both cases the same starting material – sol-gel-prepared cubic In2O3 – was used for the deposition in order to ensure a better comparability of the different sensing layers. The morphology of the layers has been characterized using scanning electron ...

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Ozone sensor with hsgfet and its characteristic ...

Sep 14, 2001 · Ozone sensor with hsgfet and its characteristic Ozone sensor with hsgfet and its characteristic Niu, Wencheng 2001-09-14 00:00:00 On the basis of character of work function shift caused by the interaction of pure or hybrid indium oxide with ozone, we developed ozone sensor with HSGFET operating at room temperature. And analyzed the response character of the samples.

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Ageing Resistant Indium Oxide Ozone Sensing Films: Ingenta ...

Indium oxide (In 2 O 3 thin films prepared by DC magnetron sputtering intended to be used as active layers for ozone sensing, demonstrating very high sensing response, were re-examined seven years after their fabrication date in terms of transmittance, surface structure, transport and sensing properties. Results revealed a noticeable characteristic of these films to retain, to a remarkable ...

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Flexible Gas Sensors Employing Octahedral Indium Oxide Films.

Mar 28, 2018 · The as-synthesized indium oxide was mixed to an organic vehicle and microdrop deposited to form a film bridging the interdigitated silver electrodes patterned on top of a flexible, polyimide (Kapton®), substrate. The gas sensing properties of the flexible chemoresistors towards ammonia vapors, hydrogen, and nitrogen dioxide were investigated.

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Ageing Resistant Indium Oxide Ozone Sensing Films: Ingenta ...

Indium oxide (In 2 O 3 thin films prepared by DC magnetron sputtering intended to be used as active layers for ozone sensing, demonstrating very high sensing response, were re-examined seven years after their fabrication date in terms of transmittance, surface structure, transport and sensing properties. Results revealed a noticeable characteristic of these films to retain, to a remarkable ...

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Flexible Gas Sensors Employing Octahedral Indium Oxide Films.

Mar 28, 2018 · The as-synthesized indium oxide was mixed to an organic vehicle and microdrop deposited to form a film bridging the interdigitated silver electrodes patterned on top of a flexible, polyimide (Kapton®), substrate. The gas sensing properties of the flexible chemoresistors towards ammonia vapors, hydrogen, and nitrogen dioxide were investigated.

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Nano-porous indium oxide transistor sensor for the ...

Nov 12, 2011 · Porous indium oxide thin film prepared by the dip coating technique has been used in the construction of a field effect transistor. The coating solution was prepared from indium chloride precursor. The average particle size of the dip coated thin film was found to be 25 nm. Scanning electron microscopic images show the porous nature of the film, and the root mean square roughness of the …

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Stratospheric Ozone Detection Using a Photon Stimulated ...

Stratospheric ozone is normally measured using stationary equipments, such as a Dobson spectrometer and filter ozonometer, which have the disadvantages of large size, high price and high cost for operation and maintenance. In this work, a balloon-borne photostimulated ozone sensor based on indium oxide nanoparticles has been developed to measure stratospheric ozone.

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CA1297948C - Ozone gas sensor and ozone gas detecting ...

ABSTRACT OF THE DISCLOSURE An ozone gas sensor comprising a film type semiconductor element including a substrate and a semiconductor film consisting of a metallic oxide formed on the substrate, and a layer of silica formed on a surface of the film type semiconductor element. At least one thin film layer of one or a plurality of types selected from metals and metal oxides is interposed between ...

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Recent progress of flexible perovskite solar cells ...

Indium tin oxide (ITO) is the most frequently used material for transparent electrodes. High-quality ITO film can be deposited on PET and PEN substrates by pulsed laser deposition (PLD) or magnetron sputtering methods . The sheet resistances of ITO/PET or ITO/PEN could reach about 15 Ω/ , which is close to 10 Ω/ for ITO/glass.

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One-step solvothermal synthesis of indium oxide as ...

The influence of deposition parameters on room temperature ozone sensing properties of InO x [J]. Sensors and Actuators, 2001, B80: 155–161. Google Scholar [10] Hu J Q, Zhu F R, Zhang J, Gong H. A room temperature indium tin oxide/quartz crystal microbalance gas sensor for nitric oxide [J]. Sensors and Actuators, 2003, B93: 175–180.

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(AlGaIn)N UV LEDs for integrated metal-oxide based ozone ...

Abstract. There is a high demand for compact low-cost ozone (O 3) sensors.It has been shown that indium oxide (In II O 3) thin films grown by metal-organic vapor-phase epitaxy (MOVPE) act as an O3 sensitive material, which can be activated at roomtemperature by ultraviolet (UV) light.In the present work we integrated the In II O 3 sensing thin film and an (AlGaIn)N based near-UV LED back-to ...

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WO3-Doped Indium Oxide Thick Films for Ozone Detection at ...

Sep 06, 2017 · Ozone, a strong oxidizing gas, has dramatically increased its concentration in the troposphere during the last decades. Since high O3 concentrations are hazardous to human health, the development of effective methods and economic devices to detect this gas is an urgent need. In this frame, In2O3 is well known as an n-type ozone sensitive and selective material, generally displaying its …

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Development of a room temperature thin film In2O3, ZnO and ...

Thin films of Indium-zinc-tin oxide have been prepared by Vacuum Thermal Evaporation (VTE). The sensing characteristics of these films to environmentally relevant ozone concentrations were studied at room temperature. The effects of film thickness, deposition rate and annealing were investigated. The resistance of the thin film was found to be inversely proportional to the deposition rate.

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Lidar - Wikipedia

Lidar (/ ˈ l aɪ d ɑːr /, also LIDAR, or LiDAR; sometimes LADAR) is a method for determining ranges (variable distance) by targeting an object with a laser and measuring the time for the reflected light to return to the receiver. Lidar can also be used to make digital 3-D representations of areas on the earth's surface and ocean bottom, due to differences in laser return times, and by ...

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Standalone real-time health monitoring patch based on a ...

Skin-like health care patches (SHPs) are next-generation health care gadgets that will enable seamless monitoring of biological signals in daily life. Skin-conformable sensors and a stretchable display are critical for the development of standalone SHPs that provide real-time information while alleviating privacy concerns related to wireless data transmission.

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Stratospheric Ozone Detection Using a Photon Stimulated ...

Stratospheric ozone is normally measured using stationary equipments, such as a Dobson spectrometer and filter ozonometer, which have the disadvantages of large size, high price and high cost for operation and maintenance. In this work, a balloon-borne photostimulated ozone sensor based on indium oxide nanoparticles has been developed to measure stratospheric ozone.

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Highly stretchable electroluminescent skin for optical ...

Mar 04, 2016 · The skins of some cephalopods, such as the octopus, are highly flexible and contain color-changing cells. These cells are loaded with pigments that enable rapid and detailed camouflaging abilities. Larson et al. developed a stretchable electroluminescent actuator. The material could be highly stretched, could emit light, and could also sense internal and external pressure.

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Conductivity and work function ozone sensors based on ...

Jun 25, 1998 · Indium oxide thin films were deposited on silicon substrates for work function sensing as well as on alumina (Pt) conductivity sensors. A correlation of work function and conductivity measurements due to ozone in dry and humid air reveal that a chemisorption state dominates both sensor effects at temperatures below 200°C.

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