Ultrasonication-assisted synthesis of high aspect ratio gold nanowires on a graphene template and investigation of their growth mechanism

2018 ◽  
Vol 54 (33) ◽  
pp. 4124-4127 ◽  
Author(s):  
Wenbo Xin ◽  
Igor M. De Rosa ◽  
Yang Cao ◽  
Xunqian Yin ◽  
Hang Yu ◽  
...  
Keyword(s):  
Aspect Ratio ◽  
Growth Mechanism ◽  
High Aspect Ratio ◽  
Gold Nanowires ◽  
Facile Synthesis ◽  
Au Nanowires

We report a facile synthesis of Au nanowires (AuNWs) with a high aspect ratio (l/D) of up to 5000 on a plasma activated graphene template with ultrasound assistance.

scholarly journals Far-field midinfrared superresolution imaging and spectroscopy of single high aspect ratio gold nanowires

2020 ◽  
Vol 117 (5) ◽  
pp. 2288-2293 ◽  
Author(s):  
Kyle Aleshire ◽  
Ilia M. Pavlovetc ◽  
Robyn Collette ◽  
Xiang-Tian Kong ◽  
Philip D. Rack ◽  
...  
Keyword(s):  
Aspect Ratio ◽  
High Aspect Ratio ◽  
Optical Measurement ◽  
Near Field ◽  
Metal Nanostructures ◽  
Gold Nanowires ◽  
Far Field ◽  
Ambient Conditions ◽  
Fabry Perot ◽  
Imaging And Spectroscopy

Limited approaches exist for imaging and recording spectra of individual nanostructures in the midinfrared region. Here we use infrared photothermal heterodyne imaging (IR-PHI) to interrogate single, high aspect ratio Au nanowires (NWs). Spectra recorded between 2,800 and 4,000 cm−1 for 2.5–3.9-μm-long NWs reveal a series of resonances due to the Fabry–Pérot modes of the NWs. Crucially, IR-PHI images show structure that reflects the spatial distribution of the NW absorption, and allow the resonances to be assigned to the m = 3 and m = 4 Fabry–Pérot modes. This far-field optical measurement has been used to image the mode structure of plasmon resonances in metal nanostructures, and is made possible by the superresolution capabilities of IR-PHI. The linewidths in the NW spectra range from 35 to 75 meV and, in several cases, are significantly below the limiting values predicted by the bulk Au Drude damping parameter. These linewidths imply long dephasing times, and are attributed to reduction in both radiation damping and resistive heating effects in the NWs. Compared to previous imaging studies of NW Fabry–Pérot modes using electron microscopy or near-field optical scanning techniques, IR-PHI experiments are performed under ambient conditions, enabling detailed studies of how the environment affects mid-IR plasmons.

Preparation and Growth Mechanism of Magnesium Borate Whiskers with High Aspect Ratio

2011 ◽  
Vol 26 (4) ◽  
pp. 364-368 ◽  
Author(s):  
Yu DUAN ◽  
Gui-Min LU ◽  
Xing-Fu SONG ◽  
Shu-Ying SUN ◽  
Jian-Guo YU
Keyword(s):  
Aspect Ratio ◽  
Growth Mechanism ◽  
High Aspect Ratio ◽  
Magnesium Borate

Synthesis, Structure and Growth Mechanism of ZnS Nanowires with High Aspect Ratio

2008 ◽  
Vol 24 (2) ◽  
pp. 193-196 ◽  
Author(s):  
Z DENG ◽  
J QI ◽  
Y ZHANG ◽  
Q LIAO ◽  
Y HUANG ◽  
...  
Keyword(s):  
Aspect Ratio ◽  
Growth Mechanism ◽  
High Aspect Ratio

scholarly journals Correction: High-aspect-ratio water-dispersed gold nanowires incorporated within gelatin methacrylate hydrogels for constructing cardiac tissues in vitro

2020 ◽  
Author(s):  
Xiao-Pei Li ◽  
Kai-Yun Qu ◽  
Feng Zhang ◽  
Han-Ning Jiang ◽  
Ning Zhang ◽  
...  
Keyword(s):  
Aspect Ratio ◽  
High Aspect Ratio ◽  
Gold Nanowires ◽  
Cardiac Tissues ◽  
Dispersed Gold

Correction for ‘High-aspect-ratio water-dispersed gold nanowires incorporated within gelatin methacrylate hydrogels for constructing cardiac tissues in vitro’ by Xiao-Pei Li et al., J. Mater. Chem. B, 2020, 8, 7213–7224, DOI: 10.1039/D0TB00768D.

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