Microstructure, electrical and humidity sensing properties of light rare earths zirconates

Petrila, Iulian; Popa, Karin; Tudorache, Florin

doi:10.1016/j.sna.2016.05.039

Cited by 19 publications

(12 citation statements)

References 46 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In Figure (a), it can be observed that the relative permittivity of poly(AnPS)&PET film decreases with the frequency and increases with the increase in humidity . From Figure (b), it can be observed that the electrical resistivity decreases with humidity and frequency …”

Section: Resultsmentioning

confidence: 84%

“…In Figure 8(a), it can be observed that the relative permittivity of poly(AnPS)&PET film decreases with the frequency and increases with the increase in humidity. 60,61 From Figure 8(b), it can be observed that the electrical resistivity decreases with humidity and frequency. 62 As expected, due to a smaller surface area, the electrical response of massive material under the action of humidity is much lower than the film material, this being reflected in a lower humidity sensitivity of a bulk material (see Figure 8).…”

Section: Thermogravimetric Analysismentioning

confidence: 97%

See 1 more Smart Citation

Self‐doped N‐propansulfonic acid polyaniline‐polyethylene terephthalate film used as active sensor element for humidity or gas detection

Solonaru¹,

Grigoraş²,

Petrila

et al. 2019

J of Applied Polymer Sci

Self Cite

View full text Add to dashboard Cite

In this work, we report the fabrication of sensors’ element for humidity or gases, prepared by in situ polymerization of aniline N‐propansulfonic acid using ammonium persulfate in acidic medium. The polymer is being used in the form of powder or deposited in multiple layers onto the PET film. Various techniques including Fourier Transform infrared (FTIR), ultraviolet‐–visible spectroscopy (UV–vis), X‐ray diffraction (XRD) and scanning electron microscopy (SEM) were employed to characterize the as‐prepared sensing materials. The film has been tested for humidity influence, where the significant variations in electrical characteristics were observed, suggesting its usefulness for humidity sensors. Also, for different organic and inorganic gases, a relatively low operating temperature and important sensitivity were observed that indicate its applicability as an active element for general gases sensors. © 2019 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 47743.

show abstract

Section: Resultsmentioning

confidence: 84%

Section: Thermogravimetric Analysismentioning

confidence: 97%

Self‐doped N‐propansulfonic acid polyaniline‐polyethylene terephthalate film used as active sensor element for humidity or gas detection

Solonaru¹,

Grigoraş²,

Petrila

et al. 2019

J of Applied Polymer Sci

Self Cite

View full text Add to dashboard Cite

show abstract

“…It should be noted that humidity in the ambient environment [10,35] and interference from other types of gases [15], such as NO, CO, and SO 2 , are two critical parameters to affect the sensor’s performance, and related research is underway.…”

Section: Resultsmentioning

confidence: 99%

Flexible Mixed-Potential-Type (MPT) NO2 Sensor Based on An Ultra-Thin Ceramic Film

You

Cui

2017

Sensors

View full text Add to dashboard Cite

A novel flexible mixed-potential-type (MPT) sensor was designed and fabricated for NO2 detection from 0 to 500 ppm at 200 °C. An ultra-thin Y2O3-doped ZrO2 (YSZ) ceramic film 20 µm thick was sandwiched between a heating electrode and reference/sensing electrodes. The heating electrode was fabricated by a conventional lift-off process, while the porous reference and the sensing electrodes were fabricated by a two-step patterning method using shadow masks. The sensor’s sensitivity is achieved as 58.4 mV/decade at the working temperature of 200 °C, as well as a detection limit of 26.7 ppm and small response time of less than 10 s at 200 ppm. Additionally, the flexible MPT sensor demonstrates superior mechanical stability after bending over 50 times due to the mechanical stability of the YSZ ceramic film. This simply structured, but highly reliable flexible MPT NO2 sensor may lead to wide application in the automobile industry for vehicle emission systems to reduce NO2 emissions and improve fuel efficiency.

show abstract

“…For a good humidity sensing device, high stability is a crucial parameter. [21] Humidity stability of HAp sensor was investigated by measuring the resistance of HAp sensor at different RH every 5 days in 25 days. [22] The sensor was stored in a 22°C, 20-30% RH environment during the entire experiment.…”

Section: Humidity Sensing Property Of Hap Sensormentioning

confidence: 99%

A Rapid Response/Recovery Ribbon‐like Hydroxyapatite Humidity Sensor with Loose Spatial Structure

Sun

et al. 2019

ChemistrySelect

View full text Add to dashboard Cite

A rapid response/recovery ribbon‐like hydroxyapatite (HAp) humidity sensor with loose spatial structure has been fabricated in this work. The HAp film was prepared on polyethylene terephthalate‐indium tin oxide (PET‐ITO) interdigital substrate by electrochemical deposition method. The HAp film was characterized by XRD, SEM, FTIR techniques. Electrochemically deposited HAp has a preferred orientation in a‐plane, which exposes a great many of hydroxyl groups. The HAp has a flat ribbon‐like microstructure that effectively captures and detects water molecules. The gap of the interdigital electrode was filled with long ribbon‐like HAp to form a loose spatial structure which facilitates water molecules adsorption and desorption. The HAp humidity sensor showed high sensitivity, low hysteresis and good linearity. In particular, HAp sensor has a short response time of 0.9 s and recovery time of 5.6 s. Besides, the humidity sensing mechanism of HAp sensor was also investigated in detail.

show abstract

Microstructure, electrical and humidity sensing properties of light rare earths zirconates

Cited by 19 publications

References 46 publications

Self‐doped N‐propansulfonic acid polyaniline‐polyethylene terephthalate film used as active sensor element for humidity or gas detection

Self‐doped N‐propansulfonic acid polyaniline‐polyethylene terephthalate film used as active sensor element for humidity or gas detection

Flexible Mixed-Potential-Type (MPT) NO2 Sensor Based on An Ultra-Thin Ceramic Film

A Rapid Response/Recovery Ribbon‐like Hydroxyapatite Humidity Sensor with Loose Spatial Structure

Contact Info

Product

Resources

About