Sensitivity of semiconductor metal oxides (SnO2, WO3, ZnO) to hydrogen sulfide in dry and humid gas media

Малышев, В. В.; Pislyakov, A.V.

doi:10.1134/s1061934814020105

Cited by 6 publications

(4 citation statements)

References 31 publications

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“…Carrying out the same measurements in humid air represents a different picture. In general, all analyte responses are lower in humid air than in dry air 26 , even though the base resistance is not influenced much and the gradation between individual samples tends to be larger.…”

Section: Resultsmentioning

confidence: 88%

Highly sensitive SnO2 sensor via reactive laser-induced transfer

Palla-Papavlu

Mattle

Temmel

et al. 2016

Sci Rep

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Gas sensors based on tin oxide (SnO2) and palladium doped SnO2 (Pd:SnO2) active materials are fabricated by a laser printing method, i.e. reactive laser-induced forward transfer (rLIFT). Thin films from tin based metal-complex precursors are prepared by spin coating and then laser transferred with high resolution onto sensor structures. The devices fabricated by rLIFT exhibit low ppm sensitivity towards ethanol and methane as well as good stability with respect to air, moisture, and time. Promising results are obtained by applying rLIFT to transfer metal-complex precursors onto uncoated commercial gas sensors. We could show that rLIFT onto commercial sensors is possible if the sensor structures are reinforced prior to printing. The rLIFT fabricated sensors show up to 4 times higher sensitivities then the commercial sensors (with inkjet printed SnO2). In addition, the selectivity towards CH4 of the Pd:SnO2 sensors is significantly enhanced compared to the pure SnO2 sensors. Our results indicate that the reactive laser transfer technique applied here represents an important technical step for the realization of improved gas detection systems with wide-ranging applications in environmental and health monitoring control.

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Section: Resultsmentioning

confidence: 88%

Highly sensitive SnO2 sensor via reactive laser-induced transfer

Palla-Papavlu

Mattle

Temmel

et al. 2016

Sci Rep

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“…In [42], new experimental data on gas sensitivity and operating characteristics of semiconductor sensors based on pure oxides of SnO 2 , WO 3 , ZnO, as well as SnO 2 with catalytic additives La 2 O 3 and CuO for detection of hydrogen sulfide in dry and humid (up to 80%) air were obtained and systematized.…”

Section: Non-optical Methods Of Hydrogen Sulfide Detectionmentioning

confidence: 99%

Real-time methods of hydrogen sulfide detection

Kireev¹,

Kondrashov²,

Rybakov³

et al. 2022

Laser Phys. Lett.

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“…However, the existing gas analyzers do not allow for high-sensitive online detection. Moreover, they are often difficult to use and unreliable [10][11][12][13][14][15][16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

“…Semiconductor [10][11][12][13][14] and electrochemical [15][16][17][18][19] gas analyzers are currently among the most commonly used hydrogen sulfide detectors.…”

Section: Introductionmentioning

confidence: 99%