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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)...
In this work, thin films based on multi-walled carbon nanotubes (MWCNT)- poly(3,4-ethylenedioxythiophene)-poly (styrenesulfonate) (PEDOT:PSS) were prepared by solution mixing method. The dispersions were deposited on a flexible thin polyimide Kapton-HN 500 substrate by drop casting technique. The physical aging effect on the thin films as a function of MWCNT concentration ranging from 0.025 wt. %...
Multiwalled carbon nanotubes (MWCNTs) dispersed in sodium dodecylbenzenesulfonate (SDBS) then mixed with poly (3, 4-ethylenedioxythiophen)/ poly (4-styrene-sulfonate) (PEDOT:PSS) nanocomposites containing MWCNTs content between 0.025 wt.% and 0.1 wt.% were prepared and deposited on a flexible thin substrate (Kapton HN) using the drop casting technique. Alternating current (AC) electrical properties...
The piezoresistive properties of thin films based on carbon nanotubes dispersed in conductive polymer were investigated. Conductive multiwalled carbon nanotubes / Poly (3,4-ethylenedioxythiophene) polymerized with poly(4-styrenesulfonate) (PEDOT:PSS) films were prepared and deposited on flexible polymer substrates (Kapton HN, 250 µm) by drop casting and the aqueous dispersions with different amounts...
Poly (3,4-ethylenedioxythiophene) poly (4-styrene-sulfonate) (PEDOT:PSS) polymer shows remarkable electrical properties which can be enhanced by using multi-walled carbon nanotubes (MWCNTs) as fillers. The MWCNTs/PEDOT:PSS nanocomposites containing 0.025, 0.05, 0.075 and 0.1 wt. % of MWCNTs were prepared and deposited on a flexible thin substrate (Kapton HN) by using the drop casting technique. The...
We demonstrate near-infrared sensors based on single wall carbon nanotubes. In order to fabricate near-infrared sensors, single wall carbon nanotubes were dispersed in the aqueous phase. Thin films of single wall carbon nanotubes dispersions have been deposited on flexible polymer substrates. The physical and optical characteristics of both the single wall carbon nanotubes dispersions and the deposited...
The electrical transport properties of the thin films based dispersed carbon nanotubes (MWNT) when exposed to humid environment in various temperatures was investigated. The MWNTs dispersed in three different kinds of surfactants (sodium dodecylbenzene sulfonate (SDBS), sodium dodecylsulfate (SDS), and Triton X-100) were deposited on flexible polymer substrates (Polyethylene terephthalate - PET) through...
Because of their remarkable properties, carbon nanotubes (CNTs) have been used in many applications [1–5]. Stain sensors based on CNTs can overcome several limitations of the existing conventional sensors, including limited monitoring locations and separation from the structure that is being monitored. Many deposition methods were applied to deposit CNTs on substrate; inkjet technology among others...
Contact effects of carbon nanotubes (CNT) to metallic electrodes have a big impact on the electronic transport in CNT-based structures. In general there are two expected types of contacts, Schottky type with semiconducting tubes and ohmic contact with semiconducting and metallic tubes. However not always perfect contacts come, it is rather a tunneling barrier contact because of the weak coupling to...
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