Gas sensing properties of surface acoustic wave NH3 gas sensor based on Pt doped polypyrrole sensitive film

Chen, Xiao; Li, D.M.; Liang, Susan; Zhan, Shuie; Liu, M.

doi:10.1016/j.snb.2012.10.120

Cited by 34 publications

(24 citation statements)

References 33 publications

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“…The response times for the sensors (i.e., based on PPy and AuPPy) were below 60 s. The estimated LOD of AuPPy (1:10) sensors to NH3 was determined to be about 133 ppb, considering that the minimum signal intensity is 3 times higher than noise. This value is significantly lower compared to PPy based sensors in other studies (see Table 1), which reported LODs of 5 ppm [1] and 10 ppm [5]. Also, we found that the LOD determined here is lower compared to Fe2O3/WO3 based SAW sensors reported previously [2].…”

Section: Resultscontrasting

confidence: 68%

Polypyrrole Based Love-Wave Gas Sensor Devices with Enhanced Properties to Ammonia

et al. 2018

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Section: Resultscontrasting

confidence: 68%

Polypyrrole Based Love-Wave Gas Sensor Devices with Enhanced Properties to Ammonia

et al. 2018

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“…In the past decade, considerable attention has been paid to SAW gas sensors by utilizing a variety of materials as sensing layers, such as polymers [8][9][10], metal oxides and its nanostructures [11][12][13][14][15] and various carbon-based nanomaterials (e.g.,…”

Section: Introductionmentioning

confidence: 99%

Colloidal quantum dot-based surface acoustic wave sensors for NO2-sensing behavior

Kan

Chen

et al. 2019

Sensors and Actuators B: Chemical

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“…For example, Raj et al reported a quartz SAW sensor with a ZnO film layer, which showed a negative frequency shift attributed to the variations of mass and elastic modulus of the ZnO film when exposed to NH3 [30]. Chen et al showed a quartz SAW NH3 sensor with a Pt doped polypyrrole sensitive film, and they attributed the positive frequency shift to the variation of conductivity of film [31]. Similar work about either positive or negative frequency shift of the SAW NH3 sensor has been reported in many references [32][33][34].…”

Section: Introductionmentioning

confidence: 99%

NH3 sensing property and mechanisms of quartz surface acoustic wave sensors deposited with SiO2, TiO2, and SiO2-TiO2 composite films

Tang

et al. 2018

Sensors and Actuators B: Chemical

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Gas sensing properties of surface acoustic wave NH3 gas sensor based on Pt doped polypyrrole sensitive film

Cited by 34 publications

References 33 publications

Polypyrrole Based Love-Wave Gas Sensor Devices with Enhanced Properties to Ammonia

Polypyrrole Based Love-Wave Gas Sensor Devices with Enhanced Properties to Ammonia

Colloidal quantum dot-based surface acoustic wave sensors for NO2-sensing behavior

NH3 sensing property and mechanisms of quartz surface acoustic wave sensors deposited with SiO2, TiO2, and SiO2-TiO2 composite films

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