Ultrahigh performance humidity sensor based on layer-by-layer self-assembly of graphene oxide/polyelectrolyte nanocomposite film

Zhang, Dongzhi; Tong, Jun; Xia, Bokai; Xue, Qingzhong

doi:10.1016/j.snb.2014.06.116

Cited by 245 publications

(126 citation statements)

References 34 publications

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“…The saturated salt solutions were used to yield different RH levels, as reported in our previous work [35,36]. Phosphorus pentoxide powder (P 2 O 5 ) was used as desiccant to outtake the water molecules (0% RH) for the sensor recovery.…”

Section: Humidity-sensing Performancesmentioning

confidence: 99%

Facile Fabrication of MoS₂-Modified SnO₂ Hybrid Nanocomposite for Ultrasensitive Humidity Sensing

Zhang

Sun

et al. 2016

ACS Appl. Mater. Interfaces

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452

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An ultrasensitive humidity sensor based on molybdenum-disulfide- (MoS2)-modified tin oxide (SnO2) nanocomposite has been demonstrated in this work. The nanostructural, morphological, and compositional properties of an as-prepared MoS2/SnO2 nanocomposite were characterized by scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction (XRD), energy dispersive spectrometry (EDS), nitrogen sorption analysis, and Raman spectroscopy, which confirmed its successful preparation and rationality. The sensing characteristics of the MoS2/SnO2 hybrid film device against relative humidity (RH) were investigated at room temperature. The RH sensing results revealed an unprecedented response, ultrafast response/recovery behaviors, and outstanding repeatability. To our knowledge, the sensor response yielded in this work was tens of times higher than that of the existing humidity sensors. Moreover, the MoS2/SnO2 hybrid nanocomposite film sensor exhibited great enhancement in humidity sensing performances as compared to the pure MoS2, SnO2, and graphene counterparts. Furthermore, complex impedance spectroscopy and bode plots were employed to understand the underlying sensing mechanisms of the MoS2/SnO2 nanocomposite toward humidity. The synthesized MoS2/SnO2 hybrid composite was proved to be an excellent candidate for constructing ultrahigh-performance humidity sensor toward various applications.

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Section: Humidity-sensing Performancesmentioning

confidence: 99%

Facile Fabrication of MoS₂-Modified SnO₂ Hybrid Nanocomposite for Ultrasensitive Humidity Sensing

Zhang

Sun

et al. 2016

ACS Appl. Mater. Interfaces

Self Cite

452

163

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“…So we can apply this theory to improve the sensitivity of the sensor after considering these factors. Compared with previous work [14,[34][35][36][37][38], Table 3 presents the related characteristics of the proposed humidity sensor. This comparison provides a clear perspective to observe the merits of adjusting the comb electrode parameters and achieve an ideal measure for building humidity sensors.…”

Section: Effect Of Comb Electrode Parametermentioning

confidence: 99%

High sensitivity and fast response graphene oxide capacitive humidity sensor with computer-aided design

Guo

Tang

Shen

et al. 2016

Computational Materials Science

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“…An alternative cost-effective approach, a solution-based bottom-up assembly process called layer-by-layer (LbL) self-assembly, allowed for sequential adsorption of functional nanoparticles to form a hierarchical membrane [20][21][22]. The LbL assembly approach offers a promising way to yield ultrathin nanocomposite films.…”

Section: Introductionmentioning

confidence: 99%

Fabrication and characterization of layer-by-layer nano self-assembled ZnO nanorods/carbon nanotube film sensor for ethanol gas sensing application at room temperature

Zhang

Sun

Zhang

2015

J Mater Sci: Mater Electron

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This paper reported a ZnO/multi-wall carbon nanotubes (MWNTs) film-based sensor for ethanol gas detection. The film sensor was fabricated on a printed circuit board with interdigital electrodes microstructure. ZnO and MWNTs were utilized to form a hierarchical nanostructure using layer-by-layer self-assembly technique. The ZnO/MWNTs nanocomposites were characterized by scanning electron microscope and X-ray diffraction. The ethanol gas sensing properties of the presented sensor, such as the sensitivity, response-recovery characteristics and repeatability, were investigated by exposing to different concentration of ethanol gas varying from 5 to 500 ppm at room temperature. Comparisons were made with the drop-casted ZnO and layer-by-layer selfassembled ZnO/PSS film sensors under the same design, substrate and experiment conditions. As a result, the ZnO/ MWNTs film sensor exhibited outstanding sensitivity, prompt response-recovery time and good repeatability, which outstripped that of the other two sensors. Furthermore, the normalized response of the sensor as a function of ethanol gas concentration was shown in this work, and the possible sensing mechanism of the above mentioned sensor was discussed in detail. This work highlights the unique superiority of layer-by-layer self-assembled ZnO/ MWNTs film for constructing ethanol gas sensors.

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Ultrahigh performance humidity sensor based on layer-by-layer self-assembly of graphene oxide/polyelectrolyte nanocomposite film

Cited by 245 publications

References 34 publications

Facile Fabrication of MoS₂-Modified SnO₂ Hybrid Nanocomposite for Ultrasensitive Humidity Sensing

Facile Fabrication of MoS₂-Modified SnO₂ Hybrid Nanocomposite for Ultrasensitive Humidity Sensing

High sensitivity and fast response graphene oxide capacitive humidity sensor with computer-aided design

Fabrication and characterization of layer-by-layer nano self-assembled ZnO nanorods/carbon nanotube film sensor for ethanol gas sensing application at room temperature

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Ultrahigh performance humidity sensor based on layer-by-layer self-assembly of graphene oxide/polyelectrolyte nanocomposite film

Cited by 245 publications

References 34 publications

Facile Fabrication of MoS2-Modified SnO2 Hybrid Nanocomposite for Ultrasensitive Humidity Sensing

Facile Fabrication of MoS2-Modified SnO2 Hybrid Nanocomposite for Ultrasensitive Humidity Sensing

High sensitivity and fast response graphene oxide capacitive humidity sensor with computer-aided design

Fabrication and characterization of layer-by-layer nano self-assembled ZnO nanorods/carbon nanotube film sensor for ethanol gas sensing application at room temperature

Contact Info

Product

Resources

About

Facile Fabrication of MoS₂-Modified SnO₂ Hybrid Nanocomposite for Ultrasensitive Humidity Sensing

Facile Fabrication of MoS₂-Modified SnO₂ Hybrid Nanocomposite for Ultrasensitive Humidity Sensing