Controllable fabrication and magnetic-field assisted alignment of Fe3O4-coated Ag nanowires via a facile co-precipitation method

Li, Na; Huang, Guan‐Jhong; Shen, Xiaojun; Xiao, Hong‐Mei; Fu, Shao‐Yun

doi:10.1039/c3tc30270a

Cited by 51 publications

(45 citation statements)

References 49 publications

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“…In our previous work [30], it has been demonstrated that the alignment of Fe 3 O 4 -coated Ag-NWs depends strongly on the amount of Fe 3 O 4 magnetic nanoparticles. To determine the optimal amount of Fe 3 O 4 magnetic nanoparticles, the deposition of the Fe 3 O 4 -coated Ag-NWs as shown in Fig.…”

Section: Determination Of Optimal Mass Ratio Of Fe 3 O 4 To Ag-nwsmentioning

confidence: 99%

“…The homogeneous magnetic field is critical for achieving the alignment of NWs [34]. Fe 3 O 4 -coated Ag-NW/PVA composite solutions with different contents of Ag-NWs are cast onto the mould and dried at RT in air for 24 h. Due to the magnetic characteristics of Fe 3 O 4 -coated Ag-NWs [30], it is supposed that the Fe 3 O 4 -coated Ag-NWs in the PVA solution can be aligned along the magnetic field produced by the two magnets (Fig. 2a).…”

Section: Fabrication Of Oriented Fe 3 O 4 -Coated Ag-nw/pva Compositementioning

confidence: 99%

“…The average aspect ratio of the as-prepared Ag-NWs is 79 [30]. Fe 3 O 4 -coated Ag-NWs were synthesized via a co-precipitation method and its solution was then prepared by dispersion of Fe 3 O 4 -coated Ag-NWs in n-butyl alcohol (see Supplementary Materials).…”

Section: Fabrication Of Random Un-coated and Fe 3 O 4 -Coated Ag-nw/pmentioning

confidence: 99%

“…A low magnetic field of about 800 Oe, which has been demonstrated to be effective for coated carbon nanotubes [29], is employed for adjusting the alignment of Fe 3 O 4 -coated Ag-NWs. Our previous work reported the decoration of Ag-NWs with magnetite nanoparticles by a facile co-precipitation method, and the decorated Ag-NWs could be highly aligned by an external magnetic field [30]. Here we introduced Fe 3 O 4 -decorated Ag-NWs into the poly(vinyl alcohol) (PVA) various Ag-NW contents was studied.…”

Section: Introductionmentioning

confidence: 96%

See 3 more Smart Citations

Preparation of aligned Fe3O4@Ag-nanowire/poly(vinyl alcohol) nanocomposite films via a low magnetic field

Huang

Xiao

et al. 2015

Composites Part A: Applied Science and Manufacturing

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Section: Determination Of Optimal Mass Ratio Of Fe 3 O 4 To Ag-nwsmentioning

confidence: 99%

Section: Fabrication Of Oriented Fe 3 O 4 -Coated Ag-nw/pva Compositementioning

confidence: 99%

Section: Fabrication Of Random Un-coated and Fe 3 O 4 -Coated Ag-nw/pmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 96%

See 2 more Smart Citations

Preparation of aligned Fe3O4@Ag-nanowire/poly(vinyl alcohol) nanocomposite films via a low magnetic field

Huang

Xiao

et al. 2015

Composites Part A: Applied Science and Manufacturing

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“…[13][14][15][16] Recently, significant interest has been directed toward the design of AgNWs composite in order to extend their range of applications. 17,18 In this case, carbon systems such as multiwalled carbon nanotubes and graphene have been composited with AgNWs to improve the electrical properties of the carbon systems. [19][20][21][22] For example, Samantara et al 12 synthesized reduced graphene oxide (rGO)/AgNWs nanocomposite by dropping rGO to the system of AgNWs.…”

Section: Introductionmentioning

confidence: 99%

Growth of silver nanowires on carbon fiber to produce hybrid/waterborne polyurethane composites with improved electrical properties

Wang

et al. 2015

J of Applied Polymer Sci

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One dimensional silver nanowires (AgNWs) were grown on carbon fiber (CF) by a facile polyol method. Fourier transform infrared spectrometer (FTIR), laser Raman spectrometer (Raman), field-emission scanning electron microscopy (FESEM), X ray diffraction instrument (XRD), energy dispersive spectrometer (EDS), and X-ray photoelectron spectrometer (XPS) were carried out to reveal the structure, morphology, and formation mechanism of the CF-AgNWs. It was found that AgNO 3 concentration of 1.5 mM, reaction temperature of 1608C, and reaction time of 120 min were appropriate conditions for growth of AgNWs on CF. Moreover, a mechanism was suggested that the cysteamine on CF acted as nucleation centers for growth of silver nanoparticles and then small sized silver nanoparticles reduced from silver nitrate were grown on CF via the silver bonding to sulfur. Through an Ostwald ripening process, small sized silver nanoparticles were grown into larger particles. With the assistance of polyvinylpyrolidone (PVP), these larger particles were directed to grow in a definite direction to form nanowires. It was found that the resistance of CFAgNWs was decreased to 19.5 X, compared with that of CF (102.6 X) with the same quality. Thus, the CF-AgNWs was added into waterborne polyurethane (WPU) to improve the electrical and dielectric properties of WPU. Results showed the WPU/CF-AgNWs composite presented a lower percolation threshold than WPU/CF composite. When the content was 2.5 wt %, the volume resistivity of the WPU/CF-AgNWs (1.90 3 10 4 X cm 21 ) was lower by approximately three orders of magnitude than that of WPU/CF (4.19 3 10 7 X cm 21 ). When the content was 2.5 wt %, the dielectric constant and dielectric loss of the WPU/CF-AgNWs were improved to 15.24 and 0.21, which were 34.5 and 40.8% higher than that of WPU/CF.

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Aligned Silver Nanowires Enabled Highly Stretchable and Transparent Electrodes with Unusual Conductive Property

Wang

et al. 2019

Adv Funct Materials

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Transparent conductors for the next generation of soft electronic devices need to be highly stretchable, conductive, and transparent, while an inevitable challenge lies in enhancing them simultaneously. Cost-effective silver nanowires (AgNWs) are widely used but the conventional random network yields a high junction resistance as well as degraded conductivity in the stretched state. Here, a novel, facile, and versatile agitation-assisted assembly approach is reported to control the orientation direction and density of AgNWs and to layer-by-layer deposit the AgNWs monolayer or multilayers onto the prestrained soft substrate. This electrode demonstrates an unprecedented low sheet resistance of 2.8 Ω sq −1 as well as high transparency of 85% and high stretchability of 40%. It is interesting to note that contrary to most other reports, such a device shows higher conductivity in the stretched state compared to the released state. ] for comparison. The designed oriented AgNWs films exhibit relatively lower sheet resistance, higher or comparable transparency and stretchability simultaneously. b) Photograph of the illuminated LED biased at 3 V with our AgNWs-based electrode at the released state (left); photograph of the illuminated LED biased at 3 V using our AgNWs-based electrode when it was stretched for 40% (right). c) Photograph of the illuminated LED biased at 3 V using our AgNWs-based electrode when it was bended for about 180°.

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Controllable fabrication and magnetic-field assisted alignment of Fe3O4-coated Ag nanowires via a facile co-precipitation method

Cited by 51 publications

References 49 publications

Preparation of aligned Fe3O4@Ag-nanowire/poly(vinyl alcohol) nanocomposite films via a low magnetic field

Preparation of aligned Fe3O4@Ag-nanowire/poly(vinyl alcohol) nanocomposite films via a low magnetic field

Growth of silver nanowires on carbon fiber to produce hybrid/waterborne polyurethane composites with improved electrical properties

Aligned Silver Nanowires Enabled Highly Stretchable and Transparent Electrodes with Unusual Conductive Property

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