Detecting Subtle Vibrations Using Graphene-Based Cellular Elastomers.

Ultralight graphene elastomer-based flexible sensors are developed to detect subtle vibrations within a broad frequency range. The same device can be employed as an accelerometer, tested within the experimental bandwidth of 20-300 Hz as well as a microphone, monitoring sound pressures from 300 to 20 000 Hz. The sensing element does not contain any metal parts, making them undetectable by external sources and can provide an acceleration sensitivity of 2.6 mV/g, which is higher than or comparable to those of rigid Si-based piezoresistive microelectromechanical systems (MEMS).

[1]  Jinhyeong Kwon,et al.  Carbon nanotube based pressure sensor for flexible electronics , 2013 .

[2]  Tim C. Lueth,et al.  SIMPLE-Use—Sensor Set for Wearable Movement and Interaction Research , 2014, IEEE Sensors Journal.

[3]  Yuelin Wang,et al.  A high-performance micromachined piezoresistive accelerometer with axially stressed tiny beams , 2005 .

[4]  Yue Tang,et al.  Ultrafast Dynamic Piezoresistive Response of Graphene‐Based Cellular Elastomers , 2016, Advanced materials.

[5]  Fan Zhang,et al.  Three-dimensionally bonded spongy graphene material with super compressive elasticity and near-zero Poisson’s ratio , 2015, Nature Communications.

[6]  Chao Gao,et al.  Multifunctional, Ultra‐Flyweight, Synergistically Assembled Carbon Aerogels , 2013, Advanced materials.

[7]  Shyamal Patel,et al.  A review of wearable sensors and systems with application in rehabilitation , 2012, Journal of NeuroEngineering and Rehabilitation.

[8]  Yao-Chiang Kan,et al.  A Wearable Inertial Sensor Node for Body Motion Analysis , 2012, IEEE Sensors Journal.

[9]  Zhuangde Jiang,et al.  A Novel Piezoresistive Accelerometer with SPBs to Improve the Tradeoff between the Sensitivity and the Resonant Frequency , 2016, Sensors.

[10]  W. Fang,et al.  A novel stress isolation guard-ring design for the improvement of a three-axis piezoresistive accelerometer , 2011 .

[11]  Han Hu,et al.  Ultralight and Highly Compressible Graphene Aerogels , 2013, Advanced materials.

[12]  S. J. Redmond,et al.  Sensors-Based Wearable Systems for Monitoring of Human Movement and Falls , 2012, IEEE Sensors Journal.

[13]  Esther Rodríguez-Villegas,et al.  Breathing Detection: Towards a Miniaturized, Wearable, Battery-Operated Monitoring System , 2008, IEEE Transactions on Biomedical Engineering.

[14]  Jian Lu,et al.  Case studies of a planar piezoresistive vibration sensor , 2016 .

[15]  Mohd Haris M. Khir,et al.  A Low-Cost CMOS-MEMS Piezoresistive Accelerometer with Large Proof Mass , 2011, Sensors.

[16]  Enzo Pasquale Scilingo,et al.  Performance evaluation of sensing fabrics for monitoring physiological and biomechanical variables , 2005, IEEE Transactions on Information Technology in Biomedicine.

[17]  R. Lundström,et al.  Responses of mechanoreceptive afferent units in the glabrous skin of the human hand to vibration. , 1986, Scandinavian journal of work, environment & health.

[18]  Andrew Starr,et al.  Performance Evaluation of MEMS Accelerometers , 2009 .

[19]  N. Hu,et al.  Tunneling effect in a polymer/carbon nanotube nanocompositestrain sensor , 2008 .

[20]  Ling Bao,et al.  Activity Recognition from User-Annotated Acceleration Data , 2004, Pervasive.

[21]  R. Johansson,et al.  Responses of mechanoreceptive afferent units in the glabrous skin of the human hand to sinusoidal skin displacements , 1982, Brain Research.

[22]  Soumen Das,et al.  A very-low cross-axis sensitivity piezoresistive accelerometer with an electroplated gold layer atop a thickness reduced proof mass , 2013 .

[23]  T. Ren,et al.  A Graphene-Based Resistive Pressure Sensor with Record-High Sensitivity in a Wide Pressure Range , 2015, Scientific Reports.

[24]  Qinglong Zheng,et al.  Micromachined Piezoresistive Accelerometers Based on an Asymmetrically Gapped Cantilever , 2011, Journal of Microelectromechanical Systems.

[25]  R. Ruoff,et al.  Stretchable and highly sensitive graphene-on-polymer strain sensors , 2012, Scientific Reports.

[26]  Benjamin C. K. Tee,et al.  25th Anniversary Article: The Evolution of Electronic Skin (E‐Skin): A Brief History, Design Considerations, and Recent Progress , 2013, Advanced materials.

[27]  Dan Li,et al.  Biomimetic superelastic graphene-based cellular monoliths , 2012, Nature Communications.

[28]  W. Park,et al.  A graphene force sensor with pressure-amplifying structure , 2014 .

[29]  Alexandra M. Golobic,et al.  Highly compressible 3D periodic graphene aerogel microlattices , 2015, Nature Communications.

[30]  Chun Li,et al.  Highly Compressible Macroporous Graphene Monoliths via an Improved Hydrothermal Process , 2014, Advanced materials.

[31]  Wee Ser,et al.  Sound Based Heart Rate Monitoring for Wearable Systems , 2010, 2010 International Conference on Body Sensor Networks.

[32]  T. K. Bhattacharyya,et al.  A high precision SOI MEMS–CMOS ±4g piezoresistive accelerometer , 2014 .

[33]  Tarun Kanti Bhattacharyya,et al.  Design, fabrication and characterization of high performance SOI MEMS piezoresistive accelerometers , 2015 .

[34]  Aneesh Koka,et al.  High-sensitivity accelerometer composed of ultra-long vertically aligned barium titanate nanowire arrays , 2013, Nature Communications.

[35]  Robert C. Maher,et al.  Mesoscale assembly of chemically modified graphene into complex cellular networks , 2014, Nature Communications.

[36]  Klaus Thoma,et al.  Novel piezoresistive high-g accelerometer geometry with very high sensitivity-bandwidth product , 2012 .

[37]  B. Shirinzadeh,et al.  A wearable and highly sensitive pressure sensor with ultrathin gold nanowires , 2014, Nature Communications.

[38]  A. Neild,et al.  Ultrasensitive Strain Sensor Produced by Direct Patterning of Liquid Crystals of Graphene Oxide on a Flexible Substrate. , 2016, ACS applied materials & interfaces.

[39]  E. Wang,et al.  Super-elastic graphene ripples for flexible strain sensors. , 2011, ACS nano.