UV–VIS sensor system based on SnO2 nanowires

Augustin, Martin; Sommer, Martin; Sysoev, Victor V.

doi:10.1016/j.sna.2014.02.016

Cited by 12 publications

(7 citation statements)

References 6 publications

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“…This indicates that the UV light sensor has not only a high response, but also a good reversibility. Compared with other reported UV sensors based on different metal oxide materials in the literature, such as WO3 [29], SnO2 [30], TiO2 [31] and ZnO [32,33], the UV sensors based on porous In2O3 nanoparticles in this study have better sensing performance (i.e., the response) than most UV sensors at room temperature.…”

Section: Structure and Morphology Of Samplesmentioning

confidence: 68%

Ultra-sensitive UV and H2S dual functional sensors based on porous In2O3 nanoparticles operated at room temperature

Yan

Zhang

et al. 2019

Journal of Alloys and Compounds

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2019) Ultra-sensitive UV and H2S dual functional sensors based on porous In2O3 nanoparticles operated at room temperature. Journal of Alloys and Compounds, 770. pp. 721-731. AbstractA dual functional sensor for detecting both UV light and H2S gas was fabricated using the hexagonal phase porous In2O3 nanoparticles, which were prepared using the hydrothermal and calcination process. The porous In2O3 nanoparticles with large surface areas and pore volumes could provide plenty of active sites to produce much active oxygen species, which were beneficial for the UV light and H2S gas sensing reactions, thus resulting in a good sensing performance. At room temperature, the dual functional sensor based on porous In2O3 nanoparticles exhibited ultra-high responses for sensing both UV light (with a wavelength of 365 nm) and H2S gas. As a UV sensor, its response was 12886.0 for a UV power intensity of 1.287 mW/cm 2 and its detection limit was 0.013 mW/cm 2 . As a H2S gas sensor, the sensor exhibited an ultra-high response (26268.5 to 1 ppm H2S) and a very low detection limit (1ppb of H2S), and it also have excellent selectivity, reversibility and stability. 2

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Section: Structure and Morphology Of Samplesmentioning

confidence: 68%

Ultra-sensitive UV and H2S dual functional sensors based on porous In2O3 nanoparticles operated at room temperature

Yan

Zhang

et al. 2019

Journal of Alloys and Compounds

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“…The similar situation is observed for SnO 2 . For significant photoconductivity effect the wavelength of the illumination should not exceed 400 nm [186]. According to general model of photoreduction, UV illumination with ℎ] > (3.0-3.7 eV) generates electronhole pars in metal oxides.…”

Section: Room Temperature Ozone Sensors Operated Under the Influence mentioning

confidence: 99%

“…In most cases, when the UV illumination has a sufficient power and Power density (mW/cm 2 ) Figure 30: Dependences of the "light on" conductivity response of SnO 2 nanowires on incident power density and wavelength at room temperature. Data extracted from [186].…”

Section: Rt Ozone Sensors Activated By Uv Illuminationmentioning

confidence: 99%

In₂O₃- and SnO₂-Based Thin Film Ozone Sensors: Fundamentals

2016

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The paper considers SnO2and In2O3thin films as materials for the design of solid-state conductometric ozone sensors in depth. In particular, the present review covers the analysis of the fundamentals of SnO2- and In2O3-based conductometric ozone sensor operation. The main focus is on the description of mechanisms of ozone interaction with metal oxides, the influence of air humidity on sensor response, and processes that control the kinetics of sensor response to ozone.

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“…Nanowire and Chip Preparation SnO 2 nanowires are grown via high temperature condensation (HTC) in a self-catalytic process (vapor-solid, VS) as described elsewhere [5]. Shortly, SnO powder as precursor is placed in an alumina crucible in a horizontal tube furnace.…”

Section: Methodsmentioning

confidence: 99%

“…Nanowires are removed by scalpel blade from the substrate surface and sonicated in isopropanol. The resulting suspension is then transferred on a chip with 39 sputtered platinum electrode structures on silicon substrate as described in [5]. Sample SEM images of nanowires on electrodes are shown in Fig.…”

Section: Methodsmentioning

confidence: 99%

UV assisted room temperature gas recognition with SnO<inf>2</inf> nanowires

Augustin

Sommer

2014

14th IEEE International Conference on Nanotechnology

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Room temperature operated recognition of gases and smells by UV activated SnO 2 nanowires are demonstrated in this paper. The recognition and separation of CO, isopropanol, and benzene in concentrations down to 10 ppm in dry and humid air is shown. Also the smells of different burnt materials or fruit can be distinguished via linear discriminant analysis. The detection of the gases is possible within 10 s. 978-1-4799-5622-7/$31.00 ©2014 IEEE

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UV–VIS sensor system based on SnO2 nanowires

Cited by 12 publications

References 6 publications

Ultra-sensitive UV and H2S dual functional sensors based on porous In2O3 nanoparticles operated at room temperature

Ultra-sensitive UV and H2S dual functional sensors based on porous In2O3 nanoparticles operated at room temperature

In₂O₃- and SnO₂-Based Thin Film Ozone Sensors: Fundamentals

UV assisted room temperature gas recognition with SnO<inf>2</inf> nanowires

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UV–VIS sensor system based on SnO2 nanowires

Cited by 12 publications

References 6 publications

Ultra-sensitive UV and H2S dual functional sensors based on porous In2O3 nanoparticles operated at room temperature

Ultra-sensitive UV and H2S dual functional sensors based on porous In2O3 nanoparticles operated at room temperature

In2O3- and SnO2-Based Thin Film Ozone Sensors: Fundamentals

UV assisted room temperature gas recognition with SnO<inf>2</inf> nanowires

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In₂O₃- and SnO₂-Based Thin Film Ozone Sensors: Fundamentals