A Self-Powered Wearable Pressure Sensor and Pyroelectric Breathing Sensor Based on GO Interfaced PVDF Nanofibers

This paper reports a self-powered, flexible, piezo- and pyro-electric hybrid nanogenerator (NG) device that can be fixed on different locations of human skin for detecting static and dynamic pressure variations and can also monitor temperature fluctuations during the respiration process. An efficient and cost-effective fabrication strategy has been developed to create electrospun poly(vinylidene fluoride) (PVDF)/graphene oxide (GO) nanofibers, which are used to create a highly sensitive wearable pressure sensor and pyroelectric breathing sensor. The sensor can accurately and rapidly detect pressures as low as 10 Pa with a high sensitivity (4.3 V/kPa), a key performance indicator for wearable sensors. Importantly, the sensor exhibits a high sensitivity to bending and stretching by finger, wrist, and elbow. The pressure sensor is also highly sensitive to vocal vibrations when attached to the human throat. The device can generate a maximum output power density of ∼6.2 mW/m2 when subjected to a compressive st...

[1]  G. Madras,et al.  Contrasting Effects of Graphene Oxide and Poly(ethylenimine) on the Polymorphism in Poly(vinylidene fluoride) , 2015 .

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

[3]  L. Colombo,et al.  Folded graphene membranes: mapping curvature at the nanoscale. , 2012, Nano letters.

[4]  Chang Kyu Jeong,et al.  Self‐Powered Real‐Time Arterial Pulse Monitoring Using Ultrathin Epidermal Piezoelectric Sensors , 2017, Advanced materials.

[5]  P Piirilä,et al.  Objective assessment of cough. , 1995, The European respiratory journal.

[6]  Andrew G. Gillies,et al.  Nanowire active-matrix circuitry for low-voltage macroscale artificial skin. , 2010, Nature materials.

[7]  A. C. Lopes,et al.  Electroactive phases of poly(vinylidene fluoride) : determination, processing and applications , 2014 .

[8]  D. Mandal,et al.  CdS decorated rGO containing PVDF electrospun fiber based piezoelectric nanogenerator for mechanical energy harvesting application , 2018 .

[9]  A. C. Lopes,et al.  Nanoparticle size and concentration dependence of the electroactive phase content and electrical and optical properties of Ag/poly(vinylidene fluoride) composites. , 2013, Chemphyschem : a European journal of chemical physics and physical chemistry.

[10]  Ping Zhao,et al.  Sponge‐Like Piezoelectric Polymer Films for Scalable and Integratable Nanogenerators and Self‐Powered Electronic Systems , 2014 .

[11]  Raeed H. Chowdhury,et al.  Epidermal Electronics , 2011, Science.

[12]  Geon-Tae Hwang,et al.  Piezoelectric BaTiO₃ thin film nanogenerator on plastic substrates. , 2010, Nano letters.

[13]  Manoj Kumar Gupta,et al.  Transparent flexible stretchable piezoelectric and triboelectric nanogenerators for powering portable electronics , 2015 .

[14]  B. Lu,et al.  High-Performance Piezoelectric Nanogenerators with Imprinted P(VDF-TrFE)/BaTiO3 Nanocomposite Micropillars for Self-Powered Flexible Sensors. , 2017, Small.

[15]  Liwei Lin,et al.  Polymeric Nanofibers with Ultrahigh Piezoelectricity via Self-Orientation of Nanocrystals. , 2017, ACS nano.

[16]  Dipankar Mandal,et al.  Bio-assembled, piezoelectric prawn shell made self-powered wearable sensor for non-invasive physiological signal monitoring , 2017 .

[17]  Yihe Zhang,et al.  Novel Method for the Fabrication of Flexible Film with Oriented Arrays of Graphene in Poly(vinylidene fluoride-co- hexafluoropropylene) with Low Dielectric Loss , 2014 .

[18]  Giada Cellot,et al.  Graphene-Based Interfaces Do Not Alter Target Nerve Cells. , 2016, ACS nano.

[19]  F. Wei,et al.  Facile synthesis of graphene nanosheets via Fe reduction of exfoliated graphite oxide. , 2011, ACS nano.

[20]  D. Mandal,et al.  Self-poled transparent and flexible UV light-emitting cerium complex-PVDF composite: a high-performance nanogenerator. , 2015, ACS applied materials & interfaces.

[21]  S. H. Choy,et al.  Highly durable all-fiber nanogenerator for mechanical energy harvesting , 2013 .

[22]  Benjamin C. K. Tee,et al.  Flexible polymer transistors with high pressure sensitivity for application in electronic skin and health monitoring , 2013, Nature Communications.

[23]  Dipankar Mandal,et al.  Origin of piezoelectricity in an electrospun poly(vinylidene fluoride-trifluoroethylene) nanofiber web-based nanogenerator and nano-pressure sensor. , 2011, Macromolecular rapid communications.

[24]  Hossam Haick,et al.  Tunable touch sensor and combined sensing platform: toward nanoparticle-based electronic skin. , 2013, ACS applied materials & interfaces.

[25]  Ju-Hyuck Lee,et al.  Micropatterned P(VDF‐TrFE) Film‐Based Piezoelectric Nanogenerators for Highly Sensitive Self‐Powered Pressure Sensors , 2015 .

[26]  L. Chen,et al.  Piezoresistive Behavior Study on Finger‐Sensing Silicone Rubber/Graphite Nanosheet Nanocomposites , 2007 .

[27]  Zhong Lin Wang,et al.  Piezoelectric Nanogenerators Based on Zinc Oxide Nanowire Arrays , 2006, Science.

[28]  Tae Yun Kim,et al.  Thermally Induced Strain‐Coupled Highly Stretchable and Sensitive Pyroelectric Nanogenerators , 2015 .

[29]  Manoj Kumar Gupta,et al.  Unidirectional High‐Power Generation via Stress‐Induced Dipole Alignment from ZnSnO3 Nanocubes/Polymer Hybrid Piezoelectric Nanogenerator , 2014 .

[30]  W. S. Hummers,et al.  Preparation of Graphitic Oxide , 1958 .

[31]  Lili Wang,et al.  An ultra-sensitive and rapid response speed graphene pressure sensors for electronic skin and health monitoring , 2016 .

[32]  Santosh Kumar Yadav,et al.  Functionalized graphene nanoplatelets for enhanced mechanical and thermal properties of polyurethane nanocomposites , 2013 .

[33]  Yi Yang,et al.  Graphene-Paper Pressure Sensor for Detecting Human Motions. , 2017, ACS nano.

[34]  Christopher R. Bowen,et al.  Micropatterning of Flexible and Free Standing Polyvinylidene Difluoride (PVDF) Films for Enhanced Pyroelectric Energy Transformation , 2015 .

[35]  M. Prato,et al.  Differential cytotoxic effects of graphene and graphene oxide on skin keratinocytes , 2017, Scientific Reports.

[36]  Dipankar Mandal,et al.  Sustainable Energy Generation from Piezoelectric Biomaterial for Noninvasive Physiological Signal Monitoring , 2017 .

[37]  D. Mandal,et al.  Design of In Situ Poled Ce(3+)-Doped Electrospun PVDF/Graphene Composite Nanofibers for Fabrication of Nanopressure Sensor and Ultrasensitive Acoustic Nanogenerator. , 2016, ACS applied materials & interfaces.

[38]  Yong Ding,et al.  Piezoelectric nanogenerator using CdS nanowires , 2008 .

[39]  S. Lanceros‐Méndez,et al.  Nucleation of the Electroactive γ Phase and Enhancement of the Optical Transparency in Low Filler Content Poly(vinylidene)/Clay Nanocomposites , 2011 .

[40]  C. Bowen,et al.  Graphene Ink Laminate Structures on Poly(vinylidene difluoride) (PVDF) for Pyroelectric Thermal Energy Harvesting and Waste Heat Recovery. , 2017, ACS applied materials & interfaces.

[41]  V. Maheshwari,et al.  High-Resolution Thin-Film Device to Sense Texture by Touch , 2006, Science.

[42]  Z. Dang,et al.  Supersensitive linear piezoresistive property in carbon nanotubes/silicone rubber nanocomposites , 2008 .

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

[44]  Christopher R. Bowen,et al.  Wind-driven pyroelectric energy harvesting device , 2016 .

[45]  P. Cebe,et al.  Impact of Nanosilicates on Poly(vinylidene fluoride) Crystal Polymorphism: Part 1. Melt-crystallization at High Supercooling , 2010 .

[46]  D. Mandal,et al.  Electrospun Gelatin Nanofiber Based Self-Powered Bio- e -Skin for Health Care Monitoring , 2017 .

[47]  Liwei Lin,et al.  High quality Mn-doped (Na,K)NbO3 nanofibers for flexible piezoelectric nanogenerators. , 2014, ACS applied materials & interfaces.

[48]  D. Mandal,et al.  Simple synthesis of palladium nanoparticles, β-phase formation, and the control of chain and dipole orientations in palladium-doped poly(vinylidene fluoride) thin films. , 2012, Langmuir : the ACS journal of surfaces and colloids.

[49]  F. Fan,et al.  Flexible Nanogenerators for Energy Harvesting and Self‐Powered Electronics , 2016, Advanced materials.

[50]  P. Feng,et al.  Fabrication and characterization of few-layer graphene , 2010 .

[51]  Dipankar Mandal,et al.  Improved performance of a polymer nanogenerator based on silver nanoparticles doped electrospun P(VDF-HFP) nanofibers. , 2014, Physical chemistry chemical physics : PCCP.

[52]  Z. Dang,et al.  Giant dielectric constant and resistance-pressure sensitivity in carbon nanotubes/rubber nanocomposites with low percolation threshold , 2007 .

[53]  Majid Minary-Jolandan,et al.  Nano/microscale pyroelectric energy harvesting: challenges and opportunities , 2013 .

[54]  Jinyou Shao,et al.  A Stretchable and Transparent Nanocomposite Nanogenerator for Self-Powered Physiological Monitoring. , 2017, ACS applied materials & interfaces.

[55]  Jianxin He,et al.  Highly sensitive, self-powered and wearable electronic skin based on pressure-sensitive nanofiber woven fabric sensor , 2017, Scientific Reports.

[56]  Biswajit Mahanty,et al.  Two‐Dimensional Piezoelectric MoS2‐Modulated Nanogenerator and Nanosensor Made of Poly(vinlydine Fluoride) Nanofiber Webs for Self‐Powered Electronics and Robotics , 2017 .

[57]  Benjamin C. K. Tee,et al.  An electrically and mechanically self-healing composite with pressure- and flexion-sensitive properties for electronic skin applications. , 2012, Nature nanotechnology.

[58]  Weiqing Yang,et al.  Cowpea-structured PVDF/ZnO nanofibers based flexible self-powered piezoelectric bending motion sensor towards remote control of gestures , 2019, Nano Energy.

[59]  A. J. Lovinger.  Ferroelectric Polymers , 1983, Science.

[60]  Hongjuan Sun,et al.  The Effect of Thermal Exfoliation Temperature on the Structure and Supercapacitive Performance of Graphene Nanosheets , 2014, Nano-Micro Letters.

[61]  Hao Xue,et al.  A wearable pyroelectric nanogenerator and self-powered breathing sensor , 2017 .