Electrical conductivity of poly(ethylene terephthalate) modified by titanium plasma

Han, Zhaojun; Tay, Beng Kang

doi:10.1002/app.27414

Cited by 8 publications

(7 citation statements)

References 49 publications

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“…One can see that the resistance of the sample falls dramatically with the irradiation fluence, by ≈ more than 8 orders of magnitude in the considered fluence range. It should be mentioned that a similar effect was observed for the samples irradiated with different projectiles, including noble gases [40][41][42][43], metals [44][45][46][47][48][49], and non-metals [3,50,51]. The bulk resistivity reduction due to Na implantation is stronger than that reported for the PET samples irradiated with light noble gases [54].…”

Section: Resultssupporting

confidence: 71%

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Modification of PET Polymer Foil by Na⁺ Implantation

et al. 2019

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Very thin (3 µm) polyethylene terephthalate (PET) foils were irradiated with 150 keV Na + ions with the fluences in the range from 1 × 10 14 cm −2 up to 1 × 10 16 cm −2. Modification of chemical structure of the implanted polymer was studied with the Fourier transform infrared and Raman spectroscopies. Destruction of numerous chemical bonds as well as formation of carbon clusters made of sp 2 hybridised C atoms and conducting cluster networks were demonstrated. The increasing presence of chain structures in the graphite-like carbonised layer is pointed out as the G band shift and decrease of D band could be seen as irradiation fluence rises. The large increase of the modified sample absorbance with the implantation fluence in the UV-VIS region was observed. The decrease of optical band-gap energy from 3.95 eV for the pristine sample down to 0.7 eV for the most heavily treated sample was estimated using the Tauc plot. Reduction of bulk resistivity by more than 8 orders of magnitude is shown in the case of the sample implanted with the fluence 1 × 10 16 cm −2. The sheet resistivity of the sample was also reduced by 5 orders of magnitude. The effect was observed on both sides of the sample, probably as the result of chemical transformations due to local increase of the polymer foil temperature. The moderate increase (15-200%) of the dielectric constant is observed in the frequency range up to 1 MHz and the change rises with the implantation fluence.

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Section: Resultssupporting

confidence: 71%

“…The studies of PET sample modifications by ion implantations by noble gases [39][40][41][42][43], metals [44][45][46][47][48][49], and non-metals [3,50,51] have been reported over years. One of the most important changes is a drastic (over many orders of magnitude) decrease of PET resistivity with the implantation fluence.…”

Section: Introductionmentioning

confidence: 99%

Modification of PET Polymer Foil by Na⁺ Implantation

et al. 2019

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“…The highest initial conductivity obtained from the 1.68 wt% AgNW-AgNP embedded composite fi ber was 2450 S cm −1 . [ 31 ] When the strain is applied to the fi ber, the conductivity decreases due to the breakage of the AgNP networks. [ 29 ] (See the Supporting Information for details.)…”

Section: Resultsmentioning

confidence: 99%

“…According to the 3D percolation theory, when the concentration of the AgNPs is high enough to satisfy the percolation threshold, the AgNPs in the fi bers are connected with each other, forming long-range connectivity and exhibiting the electrical conductivity by the electron hopping. [ 31 ] When the strain is applied to the fi ber, the conductivity decreases due to the breakage of the AgNP networks. At a high strain, the fi ber will lose its electrical conductivity because the longitudinal distance between AgNPs is too far, as forming cracks between the AgNP networks (left navy-lined box in Figure 3 a).…”

Section: Resultsmentioning

confidence: 99%

Ag Nanowire Reinforced Highly Stretchable Conductive Fibers for Wearable Electronics

Lee

Shin

Lee

et al. 2015

Adv Funct Materials

527

417

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Stretchable conductive fibers have received significant attention due to their possibility of being utilized in wearable and foldable electronics. Here, highly stretchable conductive fiber composed of silver nanowires (AgNWs) and silver nanoparticles (AgNPs) embedded in a styrene–butadiene–styrene (SBS) elastomeric matrix is fabricated. An AgNW‐embedded SBS fiber is fabricated by a simple wet spinning method. Then, the AgNPs are formed on both the surface and inner region of the AgNW‐embedded fiber via repeated cycles of silver precursor absorption and reduction processes. The AgNW‐embedded conductive fiber exhibits superior initial electrical conductivity (σ0 = 2450 S cm−1) and elongation at break (900% strain) due to the high weight percentage of the conductive fillers and the use of a highly stretchable SBS elastomer matrix. During the stretching, the embedded AgNWs act as conducting bridges between AgNPs, resulting in the preservation of electrical conductivity under high strain (the rate of conductivity degradation, σ/σ0 = 4.4% at 100% strain). The AgNW‐embedded conductive fibers show the strain‐sensing behavior with a broad range of applied tensile strain. The AgNW reinforced highly stretchable conductive fibers can be embedded into a smart glove for detecting sign language by integrating five composite fibers in the glove, which can successfully perceive human motions.

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“…[11][12][13][14][15] However, these materials remain insulators, exhibiting increasing ͑activated͒ resistivity with decreasing temperature. Achieving metallic conductivity in ion-implanted polymers is a long-standing problem.…”

Section: Introductionmentioning

confidence: 99%

Preparation of metal mixed plastic superconductors: Electrical properties of tin-antimony thin films on plastic substrates

Stephenson

Divakar

Micolich

et al. 2009

Journal of Applied Physics

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Metal mixed polymers are a cheap and effective way to produce flexible metals and superconductors. As part of an on-going effort to learn how to tune the properties of these systems with ion implantation, we present a study of the electrical properties of these systems prior to metal-mixing. We show that the electrical properties of tin-antimony thin films are remarkably robust to variations in the substrate morphology. We demonstrate that the optical absorbance of the films at a fixed wavelength provides a reliable and reproducible characterization of the relative film thickness. We find that as the film thickness is reduced, the superconducting transition in the unimplanted thin films is broadened, but the onset of the transition remains at ∼3.7 K, the transition temperature of bulk Sn. This is in marked contrast to the behavior of metal mixed films, which suggests that the metal mixing process has a significant effect of the physics of the superconducting state beyond that achieved by reducing the film thickness alone.

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Electrical conductivity of poly(ethylene terephthalate) modified by titanium plasma

Cited by 8 publications

References 49 publications

Modification of PET Polymer Foil by Na⁺ Implantation

Modification of PET Polymer Foil by Na⁺ Implantation

Ag Nanowire Reinforced Highly Stretchable Conductive Fibers for Wearable Electronics

Preparation of metal mixed plastic superconductors: Electrical properties of tin-antimony thin films on plastic substrates

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Electrical conductivity of poly(ethylene terephthalate) modified by titanium plasma

Cited by 8 publications

References 49 publications

Modification of PET Polymer Foil by Na+ Implantation

Modification of PET Polymer Foil by Na+ Implantation

Ag Nanowire Reinforced Highly Stretchable Conductive Fibers for Wearable Electronics

Preparation of metal mixed plastic superconductors: Electrical properties of tin-antimony thin films on plastic substrates

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Modification of PET Polymer Foil by Na⁺ Implantation

Modification of PET Polymer Foil by Na⁺ Implantation