Extraordinarily Stretchable All‐Carbon Collaborative Nanoarchitectures for Epidermal Sensors

Multifunctional microelectronic components featuring large stretchability, high sensitivity, high signal-to-noise ratio (SNR), and broad sensing range have attracted a huge surge of interest with the fast developing epidermal electronic systems. Here, the epidermal sensors based on all-carbon collaborative percolation network are demonstrated, which consist 3D graphene foam and carbon nanotubes (CNTs) obtained by two-step chemical vapor deposition processes. The nanoscaled CNT networks largely enhance the stretchability and SNR of the 3D microarchitectural graphene foams, endowing the strain sensor with a gauge factor as high as 35, a wide reliable sensing range up to 85%, and excellent cyclic stability (>5000 cycles). The flexible and reversible strain sensor can be easily mounted on human skin as a wearable electronic device for real-time and high accuracy detecting of electrophysiological stimuli and even for acoustic vibration recognition. The rationally designed all-carbon nanoarchitectures are scalable, low cost, and promising in practical applications requiring extraordinary stretchability and ultrahigh SNRs.

[1]  W. Goddard,et al.  Electronic--mechanical coupling in graphene from in situ nanoindentation experiments and multiscale atomistic simulations. , 2011, Nano letters.

[2]  Mark J. Schulz,et al.  A carbon nanotube strain sensor for structural health monitoring , 2006 .

[3]  Yaping Zang,et al.  Flexible suspended gate organic thin-film transistors for ultra-sensitive pressure detection , 2015, Nature Communications.

[4]  T. Rabczuk,et al.  Metamorphosis in carbon network: From penta-graphene to biphenylene under uniaxial tension , 2017, 1703.09071.

[5]  Ja Hoon Koo,et al.  Highly Skin‐Conformal Microhairy Sensor for Pulse Signal Amplification , 2014, Advanced materials.

[6]  K. Balasubramaniam,et al.  One-pot synthesis of conducting graphene-polymer composites and their strain sensing application. , 2012, Nanoscale.

[7]  Tingting Yang,et al.  Wearable and Highly Sensitive Graphene Strain Sensors for Human Motion Monitoring , 2014 .

[8]  D. Nezich,et al.  A novel class of strain gauges based on layered percolative films of 2D materials. , 2012, Nano letters.

[9]  John A. Rogers,et al.  Highly Sensitive Skin‐Mountable Strain Gauges Based Entirely on Elastomers , 2012 .

[10]  U. Chung,et al.  Highly Stretchable Resistive Pressure Sensors Using a Conductive Elastomeric Composite on a Micropyramid Array , 2014, Advanced materials.

[11]  Hao Jiang,et al.  Highly Stretchable Conductors Integrated with a Conductive Carbon Nanotube/Graphene Network and 3D Porous Poly(dimethylsiloxane) , 2014 .

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

[13]  Jun Zhou,et al.  High‐Strain Sensors Based on ZnO Nanowire/Polystyrene Hybridized Flexible Films , 2011, Advanced materials.

[14]  J. C. Bailey,et al.  Relationships between postweaning residual feed intake in heifers and forage use, body composition, feeding behavior, physical activity, and heart rate of pregnant beef females. , 2013, Journal of animal science.

[15]  John A Rogers,et al.  Design of Strain‐Limiting Substrate Materials for Stretchable and Flexible Electronics , 2016, Advanced functional materials.

[16]  I. Park,et al.  Ultra-stretchable and skin-mountable strain sensors using carbon nanotubes–Ecoflex nanocomposites , 2015, Nanotechnology.

[17]  Sang-Gook Kim,et al.  Extremely Elastic Wearable Carbon Nanotube Fiber Strain Sensor for Monitoring of Human Motion. , 2015, ACS nano.

[18]  Sida Luo,et al.  SWCNT/Graphite Nanoplatelet Hybrid Thin Films for Self‐Temperature‐Compensated, Highly Sensitive, and Extensible Piezoresistive Sensors , 2013, Advanced materials.

[19]  Peng Chen,et al.  Growth of large-sized graphene thin-films by liquid precursor-based chemical vapor deposition under atmospheric pressure , 2011 .

[20]  Xuewen Wang,et al.  Silk‐Molded Flexible, Ultrasensitive, and Highly Stable Electronic Skin for Monitoring Human Physiological Signals , 2014, Advanced materials.

[21]  Kwang S. Kim,et al.  Large-scale pattern growth of graphene films for stretchable transparent electrodes , 2009, Nature.

[22]  Congli He,et al.  Tunable piezoresistivity of nanographene films for strain sensing. , 2015, ACS nano.

[23]  E. Flahaut,et al.  A comparative study on few-layer graphene production by exfoliation of different starting materials in a low boiling point solvent , 2017 .

[24]  Benjamin C. K. Tee,et al.  Highly sensitive flexible pressure sensors with microstructured rubber dielectric layers. , 2010, Nature materials.

[25]  M. Maharbiz,et al.  A highly elastic, capacitive strain gauge based on percolating nanotube networks. , 2012, Nano letters.

[26]  R. Hauer,et al.  Proposed diagnostic criteria for the Brugada syndrome: consensus report. , 2002, Circulation.

[27]  Congli He,et al.  Ultra-sensitive strain sensors based on piezoresistive nanographene films , 2012 .

[28]  P. Ajayan,et al.  CORRIGENDUM: Super-stretchable, Transparent Carbon Nanotube-Based Capacitive Strain Sensors for Human Motion Detection , 2013, Scientific Reports.

[29]  M. Chan-Park,et al.  3D graphene-cobalt oxide electrode for high-performance supercapacitor and enzymeless glucose detection. , 2012, ACS nano.

[30]  Bing Li,et al.  One-step growth of graphene–carbon nanotube hybrid materials by chemical vapor deposition , 2011 .

[31]  I. Park,et al.  Highly stretchable and sensitive strain sensor based on silver nanowire-elastomer nanocomposite. , 2014, ACS nano.

[32]  Lim Wei Yap,et al.  Highly Stretchy Black Gold E‐Skin Nanopatches as Highly Sensitive Wearable Biomedical Sensors , 2015 .

[33]  Jin-Woo Choi,et al.  Patterning conductive PDMS nanocomposite in an elastomer using microcontact printing , 2009 .

[34]  Jie Shen,et al.  Subnanometer Two-Dimensional Graphene Oxide Channels for Ultrafast Gas Sieving. , 2016, ACS nano.

[35]  Damian Farrow,et al.  A pilot evaluation of an electronic textile for lower limb monitoring and interactive biofeedback , 2011 .

[36]  J. Wu,et al.  High-output current density of the triboelectric nanogenerator made from recycling rice husks , 2016 .

[37]  Huanyu Cheng,et al.  Large‐Area Ultrathin Graphene Films by Single‐Step Marangoni Self‐Assembly for Highly Sensitive Strain Sensing Application , 2016 .

[38]  Insang You,et al.  Material approaches to stretchable strain sensors. , 2015, Chemphyschem : a European journal of chemical physics and physical chemistry.

[39]  Peng Chen,et al.  Macroporous and monolithic anode based on polyaniline hybridized three-dimensional graphene for high-performance microbial fuel cells. , 2012, ACS nano.

[40]  A. Khanna,et al.  Functionalised graphene as a barrier against corrosion , 2017 .

[41]  Jianwen Liu,et al.  Single MWNT‐Glass Fiber as Strain Sensor and Switch , 2011, Advanced materials.

[42]  Pooi See Lee,et al.  Highly Stretchable Piezoresistive Graphene–Nanocellulose Nanopaper for Strain Sensors , 2014, Advanced materials.

[43]  Jun Yang,et al.  Graphene-based three-dimensional hierarchical sandwich-type architecture for high performance supercapacitors , 2014 .

[44]  Byeong Wan An,et al.  Stretchable and transparent electrodes using hybrid structures of graphene-metal nanotrough networks with high performances and ultimate uniformity. , 2014, Nano letters.

[45]  Yong Zhu,et al.  Highly Conductive and Stretchable Silver Nanowire Conductors , 2012, Advanced materials.

[46]  Jidong Shi,et al.  Tactile Sensing System Based on Arrays of Graphene Woven Microfabrics: Electromechanical Behavior and Electronic Skin Application. , 2015, ACS nano.

[47]  Rui Zhang,et al.  Strain dependent resistance in chemical vapor deposition grown graphene , 2011 .

[48]  Jong-Hyun Ahn,et al.  Wafer-scale synthesis and transfer of graphene films. , 2009, Nano letters.

[49]  Yang Liu,et al.  Sensitive, high-strain, high-rate bodily motion sensors based on graphene-rubber composites. , 2014, ACS nano.

[50]  Sung-hoon Ahn,et al.  A flexible and highly sensitive strain-gauge sensor using reversible interlocking of nanofibres. , 2012, Nature materials.