A fast, room temperature excimer laser route for the synthesis of Ag/MWCNT nanocomposite without using reducing agent and investigating its photoresponse behavior to visible illumination

Bahador, A.R.; Otaqsara, S.M. Taheri; Baizaee, Seyyed Mahdy

doi:10.1016/j.apsusc.2018.07.043

Cited by 8 publications

(3 citation statements)

References 66 publications

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“…In figure 3(a), the peaks at about 2θ=20°and 45°attributed to the pure PAr [20] which were still detected for PAr/MWCNT composites (figures 3(b) and (c)), suggesting the structure of PAr was well retained during the melt mixing and compression molding processes of PAr with MWCNT. The characteristic sharp peak observed at 2θ=25.2°(figure 3(c)) confirms the presence of MWCNTs in the composites [21][22][23][24].…”

Section: Resultssupporting

confidence: 53%

MWCNT induced negative real permittivity in a copolyester of Bisphenol-A with terephthalic and isophthalic acids

Özdemir

Daşdan

Kavak

et al. 2020

Mater. Res. Express

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In the present study, the negative real permittivity behavior of a copolyester of bisphenol-A with terephthalic acid and isophthalic acid (PAr) containing 1.5 to 7.5 wt% multi-walled carbon nanotubes (MWCNTs) have been investigated in detail. The structural and morphological analysis of the meltmixed composites was performed by Fourier transform infrared spectroscopy using attenuated total reflection (FTIR-ATR), atomic force microscopy (AFM), x-ray diffraction (XRD), and light microscopy. The influences of the MWCNT filler on the AC impedance, complex permittivity, and AC conductivity of the PAr polymer matrix were investigated at different operating temperatures varied between 296 K and 373 K. The transition from a negative to positive real permittivity was observed at different crossover frequencies depending on the MWCNT content of the composites whereas pure PAr showed positive values at all frequencies. The negative real permittivity characteristic of the composites was discussed in the context of Drude model.

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Section: Resultssupporting

confidence: 53%

MWCNT induced negative real permittivity in a copolyester of Bisphenol-A with terephthalic and isophthalic acids

Özdemir

Daşdan

Kavak

et al. 2020

Mater. Res. Express

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“…However, it was observed that the pristine MWCNT has some absorption bands centered at 1720 and 1197 cm −1 , corresponding to the surface moieties/defects/oxygenated sites. 30 Similarly, an absorption band corresponding to the O−H bending deformation was observed around 3386 cm −1 . 31 These oxygenated or defect sites might be formed during the fabrication process (CoMoCAT method) of the commercially available MWCNT.…”

Section: Resultsmentioning

confidence: 94%

“…Upon comparing the absorption spectra, nearly no significant change was observed for the absorption bands corresponding to various carbon bonds in both species, suggesting no chemical interaction of the decorated silver nanoparticles with the carbon atoms of MWCNT. However, it was observed that the pristine MWCNT has some absorption bands centered at 1720 and 1197 cm –1 , corresponding to the surface moieties/defects/oxygenated sites . Similarly, an absorption band corresponding to the O–H bending deformation was observed around 3386 cm –1 .…”

Section: Resultsmentioning

confidence: 99%

Silver Nanoparticle-Decorated Multiwalled Carbon Nanotube Ink for Advanced Wearable Devices

Pillai

Chandran

Surendran

2022

ACS Appl. Mater. Interfaces

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Silver nanoparticles of average size 12–13 nm were successfully decorated on the surface of multiwalled carbon nanotubes (MWCNTs) through a scalable wet chemical method without altering the structure of the MWCNTs. Employing this Ag@MWCNT, a multifunctional room-temperature curable conductive ink was developed, with PEDOT:PSS as the conductive binder. Screen printing of the ink could yield conductive planar traces with a 9.5 μm thickness and a conductivity of 28.99 S/cm, minimal surface roughness, and good adhesion on Mylar and Kapton. The versatility of the ink for developing functional elements for printed electronics was demonstrated by fabricating prototypes of a wearable strain sensor, a smart glove, a wearable heater, and a wearable breath sensor. The printed strain sensor exhibited a massive sensing range for wearable applications, including an impressive 1332% normalized resistance change under a maximum stretchability of 23% with superior cyclic stability up to 10 000 cycles. The sensor also exhibited an impeccable gauge factor of 142 for a 5% strain (59 for 23%). Furthermore, the sensor was integrated into a smart glove that could flawlessly replicate a human finger’s gestures with a minimal response time of 225–370 ms. Piezoresistive vibration sensors were also fabricated by printing the ink on Mylar, which was employed to fabricate a smart mask and a smart wearable patch to monitor variations in human respiratory and pulmonary cycles. Finally, an energy-efficient flexible heater was fabricated using the developed ink. The heater could generate a uniform temperature distribution of 130 °C at the expense of only 393 mW/cm2 and require a minimum response time of 20 s. Thus, the unique formulation of Ag@MWCNT ink proved suitable for versatile devices for future wearable applications.

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Carbon nanotubes decorated with silver nanoparticles by a facile method, and their electrochemical and catalytic evaluation

et al. 2021

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A fast, room temperature excimer laser route for the synthesis of Ag/MWCNT nanocomposite without using reducing agent and investigating its photoresponse behavior to visible illumination

Cited by 8 publications

References 66 publications

MWCNT induced negative real permittivity in a copolyester of Bisphenol-A with terephthalic and isophthalic acids

MWCNT induced negative real permittivity in a copolyester of Bisphenol-A with terephthalic and isophthalic acids

Silver Nanoparticle-Decorated Multiwalled Carbon Nanotube Ink for Advanced Wearable Devices

Carbon nanotubes decorated with silver nanoparticles by a facile method, and their electrochemical and catalytic evaluation

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