The piezoresistive performance investigation of multifunctional genuine nanocomposites thin films

In this work, piezoresistive properties of thin films based on carbon nanomaterials dispersed in intrinsically conductive polymer were investigated. The high conductive multiwalled carbon nanotubes / graphene oxide and Poly (3,4-ethylenedioxythiophene) polymerized with poly (4-styrenesulfonate) (PEDOT:PSS) thin films were prepared and deposited on flexible polymer substrates (Kapton HN500, 125 μm) by solution drop casting. The influences of mixing ratio of MWCNT:GO to PEDOT:PSS and of the chemical reduction on the electromechanical thin film properties such as electrical conductivity and strain sensitivity were investigated. For the non-treated thin films, a negative resistance coefficient was observed for the applied strain force with low strain sensitivity around -1.9. This behavior was independent on the mixing ratio between the MWCNT:GO to PEDOT:PSS. However, and for the chemically reduced thin films, two strain regions were distinguished with sensitivity up to 92. In general, MWCNT:GO/ PEDOT:PSS films have potential as a high conductive, high strain sensitive material for advanced structural health monitoring and aerospace applications.

[1]  P ? ? ? ? ? ? ? % ? ? ? ? , 1991 .

[2]  Pramod Kumar,et al.  Humidity dependent electrical response of bilayer device based on poly (3,4-ethylene dioxythiophene)-poly (styrene sulphonate) and single walled carbon nanotubes , 2014 .

[3]  R. Ruoff,et al.  Graphene and Graphene Oxide: Synthesis, Properties, and Applications , 2010, Advanced materials.

[4]  C. Alemán,et al.  Electronic, electric and electrochemical properties of bioactive nanomembranes made of polythiophene:thermoplastic polyurethane , 2014 .

[5]  Olfa Kanoun,et al.  Evaluation of the piezoresistive behavior of multifunctional nanocomposites thin films , 2014, 2014 IEEE 11th International Multi-Conference on Systems, Signals & Devices (SSD14).

[6]  D. Mainwaring,et al.  Electronic Functionality of Nanocomposites , 2011 .

[7]  R. Grubbs,et al.  Polycyclooctatetraene (polyacetylene): synthesis and properties , 1988 .

[8]  Ning Hu,et al.  Piezoresistive Strain Sensors Made from Carbon Nanotubes Based Polymer Nanocomposites , 2011, Sensors.

[9]  L. Valdevit,et al.  Mechanical characterizations of cast Poly(3,4-ethylenedioxythiophene):Poly(styrenesulfonate)/Polyvin , 2011 .

[10]  G. Wallace,et al.  Compositional effects of PEDOT-PSS/single walled carbon nanotube films on supercapacitor device performance , 2011 .

[11]  G. Choppin.  Electronic , 1988 .

[12]  Udo Lang,et al.  Piezoresistive properties of PEDOT: PSS , 2009 .

[13]  G. G. Stokes.  "J." , 1890, The New Yale Book of Quotations.

[14]  Zhenan Bao,et al.  Highly Conductive and Transparent PEDOT:PSS Films with a Fluorosurfactant for Stretchable and Flexible Transparent Electrodes , 2012 .

[15]  A. Aabloo,et al.  Conducting polymer actuators formed on MWCNT and PEDOT-PSS conductive coatings , 2013 .

[16]  Hui‐Ming Cheng,et al.  The reduction of graphene oxide , 2012 .

[17]  O. Efimov,et al.  POLYPYRROLE : A CONDUCTING POLYMER; ITS SYNTHESIS, PROPERTIES AND APPLICATIONS , 1997 .

[18]  Jang‐Kyo Kim,et al.  Graphene oxide-based transparent conductive films , 2014 .

[19]  Lai-Peng Ma,et al.  Fabrication of a large-area, flexible and color-neutral single-wall carbon nanotube:sodium dodecylbenzene sulfonate/poly-(3,4-ethylenedioxythiophene): poly(4-styrenesulfonate) transparent conductive film having a new conduction mechanism , 2014 .

[20]  P. Bandaru.  Electrical properties and applications of carbon nanotube structures. , 2007, Journal of nanoscience and nanotechnology.

[21]  Y. Kim,et al.  Medical application of carbon-nanotube-filled nanocomposites: the microcatheter. , 2006, Small.