Highly sensitive humidity sensor based on graphene oxide foam

Since sensitive humidity sensing is strongly desired, we present a highly sensitive humidity sensor fabricated from graphene oxide (GO) foam based on low-frequency dielectric properties. The GO foam shows humidity- and compression-dependent dielectric. Upon applying compression on GO foam, the humidity sensitivity increases and the maximum humidity sensitivity of dielectric loss is more than 12-fold higher than that of direct-current electrical conductivity. The highly sensitive humidity response originates from the generation of local conductive networks, which is the result of the connected isolated conductive regions by water cluster. Additionally, the dielectric properties of fabricated GO foam show a stable and repeatable humidity response, suggesting a carbon prototype with great potential in humidity sensors.

[1]  Xingli He,et al.  High sensitivity flexible Lamb-wave humidity sensors with a graphene oxide sensing layer. , 2015, Nanoscale.

[2]  Weidong Yu,et al.  Significant effect of sorbed water on the electrical and dielectric behavior of graphite oxide , 2017 .

[3]  Nae-Eung Lee,et al.  An All‐Elastomeric Transparent and Stretchable Temperature Sensor for Body‐Attachable Wearable Electronics , 2016, Advanced materials.

[4]  Qiuyun Ouyang,et al.  Sonochemical synthesis and ppb H2S sensing performances of CuO nanobelts , 2013 .

[5]  T. Chou,et al.  Highly Sensitive Wearable Textile-Based Humidity Sensor Made of High-Strength, Single-Walled Carbon Nanotube/Poly(vinyl alcohol) Filaments. , 2017, ACS applied materials & interfaces.

[6]  Andrea M. Armani,et al.  Hybrid microcavity humidity sensor , 2013 .

[7]  N. Wan,et al.  Solution-assisted ultrafast transfer of graphene-based thin films for solar cells and humidity sensors , 2017, Nanotechnology.

[8]  M. Dresselhaus,et al.  Ultrahigh humidity sensitivity of graphene oxide , 2013, Scientific Reports.

[9]  M. Cao,et al.  High-temperature conductance loss dominated defect level in h-BN: Experiments and first principles calculations , 2009 .

[10]  Fenghong Huang,et al.  Conjugated cationic polymer-assisted amplified fluorescent biosensor for protein detection via terminal protection of small molecule-linked DNA and graphene oxide , 2017 .

[11]  Xianghong Liu,et al.  Nanostructured Materials for Room‐Temperature Gas Sensors , 2016, Advanced materials.

[12]  N. Kotov,et al.  Smart electronic yarns and wearable fabrics for human biomonitoring made by carbon nanotube coating with polyelectrolytes. , 2008, Nano letters.

[13]  Feng Liu,et al.  High sensitive formaldehyde graphene gas sensor modified by atomic layer deposition zinc oxide films , 2014 .

[14]  Jianlin Zhao,et al.  High performance graphene oxide-based humidity sensor integrated on a photonic crystal cavity , 2017, 1701.02499.

[15]  P. K. Guha,et al.  Highly proton conducting MoS2/graphene oxide nanocomposite based chemoresistive humidity sensor , 2016 .

[16]  Han‐Ik Joh,et al.  Assembly of thermally reduced graphene oxide nanostructures by alternating current dielectrophoresis as hydrogen-gas sensors , 2013 .

[17]  Le Cai,et al.  Air-Stable Humidity Sensor Using Few-Layer Black Phosphorus. , 2017, ACS applied materials & interfaces.

[18]  Limin Tong,et al.  Fiber optic relative humidity sensor based on the tilted fiber Bragg grating coated with graphene oxide , 2016 .

[19]  Zhan Zhao,et al.  Enabling a wind energy harvester based on ZnO thin film as the building skin , 2017 .

[20]  T. Bayer,et al.  Tunable Mixed Ionic/Electronic Conductivity and Permittivity of Graphene Oxide Paper for Electrochemical Energy Conversion. , 2016, ACS applied materials & interfaces.

[21]  Le Yang,et al.  Free-standing and flexible LiMnTiO 4 /carbon nanotube cathodes for high performance lithium ion batteries , 2016 .

[22]  Ying Shang,et al.  Supramolecularly Modified Graphene for Ultrafast Responsive and Highly Stable Humidity Sensor , 2015 .

[23]  Jong Chul Kim,et al.  Sorption/desorption hysteresis of thin-film humidity sensors based on graphene oxide and its derivative , 2016 .

[24]  H. Salemink,et al.  All-optical on-chip sensor for high refractive index sensing in photonic crystals , 2014 .

[25]  Cheol-Woong Yang,et al.  Evidence of graphitic AB stacking order of graphite oxides. , 2008, Journal of the American Chemical Society.

[26]  Yadong Jiang,et al.  A sensitive film structure improvement of reduced graphene oxide based resistive gas sensors , 2014 .

[27]  Hai-Long Jiang,et al.  A Stretchable Electronic Fabric Artificial Skin with Pressure‐, Lateral Strain‐, and Flexion‐Sensitive Properties , 2016, Advanced materials.

[28]  V. Laur,et al.  Graphene and temperature controlled butterfly shape in permittivity-field loops of ferroelectric polymer nanocomposites , 2017 .

[29]  Yong‐Lai Zhang,et al.  Two-beam-laser interference mediated reduction, patterning and nanostructuring of graphene oxide for the production of a flexible humidity sensing device , 2012 .

[30]  Wei-li Song,et al.  Geometric design of micron-sized crystalline silicon anodes through in situ observation of deformation and fracture behaviors , 2017 .

[31]  Xin Gao,et al.  Porous iron molybdate nanorods: in situ diffusion synthesis and low-temperature H2S gas sensing. , 2013, ACS applied materials & interfaces.

[32]  Vijay K. Tomer,et al.  Highly sensitive and stable relative humidity sensors based on WO3 modified mesoporous silica , 2015 .

[33]  Chung-Lin Wu,et al.  Integration of flower-like ZnO nanostructures with crystalline-Si interdigitated back contact photovoltaic cell as a self-powered humidity sensor , 2013 .

[34]  Kook In Han,et al.  Material characteristics and equivalent circuit models of stacked graphene oxide for capacitive humidity sensors , 2016 .

[35]  Reinhold Orglmeister,et al.  A Fast Multimodal Ectopic Beat Detection Method Applied for Blood Pressure Estimation Based on Pulse Wave Velocity Measurements in Wearable Sensors , 2017, Sensors.

[36]  Jani Kivioja,et al.  Ultrafast graphene oxide humidity sensors. , 2013, ACS nano.

[37]  Yan Li,et al.  High sensitivity fiber acoustic sensor tip working at 1550 nm fabricated by two-photon polymerization technique , 2017 .

[38]  Jinho Bae,et al.  All-printed humidity sensor based on graphene/methyl-red composite with high sensitivity , 2016 .

[39]  Lai-fei Cheng,et al.  Laminated and Two-Dimensional Carbon-Supported Microwave Absorbers Derived from MXenes. , 2017, ACS applied materials & interfaces.

[40]  D. Fang,et al.  Diffusion-induced stress of electrode particles with spherically isotropic elastic properties in lithium-ion batteries , 2016, Journal of Solid State Electrochemistry.

[41]  D. Fang,et al.  Planar lattices with tailorable coefficient of thermal expansion and high stiffness based on dual-material triangle unit , 2016 .

[42]  Chao Yuan,et al.  Fabrication and Evaluation of a Graphene Oxide-Based Capacitive Humidity Sensor † , 2016, Sensors.

[43]  K. Hata,et al.  A stretchable carbon nanotube strain sensor for human-motion detection. , 2011, Nature nanotechnology.

[44]  P. K. Guha,et al.  Temperature-modulated graphene oxide resistive humidity sensor for indoor air quality monitoring. , 2016, Nanoscale.

[45]  Fatemeh Khalili-Araghi,et al.  Stable and Selective Humidity Sensing Using Stacked Black Phosphorus Flakes. , 2015, ACS nano.

[46]  Peng Du,et al.  Optical temperature sensor based on upconversion emission in Er-doped ferroelectric 0.5Ba(Zr0.2Ti0.8)O3-0.5(Ba0.7Ca0.3)TiO3 ceramic , 2014 .

[47]  Chongwu Zhou,et al.  High-performance chemical sensing using Schottky-contacted chemical vapor deposition grown monolayer MoS2 transistors. , 2014, ACS nano.

[48]  D. Fang,et al.  Lithium-Excess Research of Cathode Material Li2MnTiO4 for Lithium-Ion Batteries , 2015, Nanomaterials.

[49]  R. Li,et al.  Difunctional Graphene–Fe3O4 Hybrid Nanosheet/Polydimethylsiloxane Nanocomposites with High Positive Piezoresistive and Superparamagnetism Properties as Flexible Touch Sensors , 2016 .

[50]  Xiao Xie,et al.  Graphene oxide as high-performance dielectric materials for capacitive pressure sensors , 2017 .

[51]  Dongzhi Zhang,et al.  Ultrahigh performance humidity sensor based on layer-by-layer self-assembly of graphene oxide/polyelectrolyte nanocomposite film , 2014 .

[52]  Hong Chi,et al.  Highly Sensitive and Fast Response Colorimetric Humidity Sensors Based on Graphene Oxides Film. , 2015, ACS applied materials & interfaces.

[53]  Bo Liu,et al.  Mechanical behaviors of SD and CFA piles using BOTDA-based fiber optic sensor system: A comparative field test study , 2017 .