Humidity-sensitive characteristics of SnO2-Fe2O3 thin films prepared by spray pyrolysis

Racheva, T.M.; Stambolova, I.; Donchev, T.

doi:10.1007/bf00356605

Cited by 13 publications

(3 citation statements)

References 13 publications

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“…Among the mentioned deposition methods, electrochemical deposition is mostly operative when coating of minuscule area with prepared polymers is required. However, there are rare works in which different deposition methods such as spray techniques [103] or combination of spray pyrolysis with the other techniques [104] were applied.…”

Section: Impedance Type Humidity Sensors (Resistive)mentioning

confidence: 99%

Humidity Sensors Principle, Mechanism, and Fabrication Technologies: A Comprehensive Review

Farahani

Wagiran

Hamidon

2014

Sensors

1,010

562

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Humidity measurement is one of the most significant issues in various areas of applications such as instrumentation, automated systems, agriculture, climatology and GIS. Numerous sorts of humidity sensors fabricated and developed for industrial and laboratory applications are reviewed and presented in this article. The survey frequently concentrates on the RH sensors based upon their organic and inorganic functional materials, e.g., porous ceramics (semiconductors), polymers, ceramic/polymer and electrolytes, as well as conduction mechanism and fabrication technologies. A significant aim of this review is to provide a distinct categorization pursuant to state of the art humidity sensor types, principles of work, sensing substances, transduction mechanisms, and production technologies. Furthermore, performance characteristics of the different humidity sensors such as electrical and statistical data will be detailed and gives an added value to the report. By comparison of overall prospects of the sensors it was revealed that there are still drawbacks as to efficiency of sensing elements and conduction values. The flexibility offered by thick film and thin film processes either in the preparation of materials or in the choice of shape and size of the sensor structure provides advantages over other technologies. These ceramic sensors show faster response than other types.

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Section: Impedance Type Humidity Sensors (Resistive)mentioning

confidence: 99%

Humidity Sensors Principle, Mechanism, and Fabrication Technologies: A Comprehensive Review

Farahani

Wagiran

Hamidon

2014

Sensors

1,010

562

View full text Add to dashboard Cite

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“…The influence of process parameters on the sensitivity to humidity of SnO 2 -Fe 2 O 3 films has been investigated [29]. The nature of the iron salt influenced the humidity sensitivity of the samples.…”

Section: Influence Of Precursor Solutionmentioning

confidence: 99%

Thin Film Deposition Using Spray Pyrolysis

2005

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Spray pyrolysis has been applied to deposit a wide variety of thin films. These films were used in various devices such as solar cells, sensors, and solid oxide fuel cells. It is observed that often the properties of deposited thin films depend on the preparation conditions. An extensive review of the effects of spray parameters on film quality is given to demonstrate the importance of the process of optimization. The substrate surface temperature is the most critical parameter as it influences film roughness, cracking, crystallinity, etc. Processes involved in the spray pyrolysis technique are discussed in this review as well.

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“…Electrochemical deposition is perhaps the most extensively employed deposition method when a small area has to be covered with prepared polymers. Nonetheless, different deposition techniques, such as spray approaches, are used in a few studies [122] or a combination of spray pyrolysis and other methods [123]. Figure 5 shows an experimental schematic of a planar thick/thin film humidity sensor based on an interdigitated structure with a porous membrane, with some of the key design features highlighted.…”

Section: Resistive Type Humidity Sensorsmentioning

confidence: 99%

Humidity Sensing Applications of Lead-Free Halide Perovskite Nanomaterials

et al. 2022

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Over the past decade, perovskite-based nanomaterials have gained notoriety within the scientific community and have been used for a variety of viable applications. The unique structural properties of these materials, namely good direct bandgap, low density of defects, large absorption coefficient, high sensitivity, long charge carrier lifetime, good selectivity, acceptable stability at room temperature, and good diffusion length have prompted researchers to explore their potential applications in photovoltaics, light-emitting devices, transistors, sensors, and other areas. Perovskite-based devices have shown very excellent sensing performances to numerous chemical and biological compounds in both solid and liquid mediums. When used in sensing devices, Perovskite nanomaterials are for the most part able to detect O2, NO2, CO2, H2O, and other smaller molecules. This review article looks at the use of lead-free halide perovskite materials for humidity sensing. A complete description of the underlying mechanisms and charge transport characteristics that are necessary for a thorough comprehension of the sensing performance will be provided. An overview of considerations and potential recommendations for the creation of new lead-free perovskite nanostructure-based sensors is presented.

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Humidity-sensitive characteristics of SnO2-Fe2O3 thin films prepared by spray pyrolysis

Cited by 13 publications

References 13 publications

Humidity Sensors Principle, Mechanism, and Fabrication Technologies: A Comprehensive Review

Humidity Sensors Principle, Mechanism, and Fabrication Technologies: A Comprehensive Review

Thin Film Deposition Using Spray Pyrolysis

Humidity Sensing Applications of Lead-Free Halide Perovskite Nanomaterials

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