Abstract:
:Ultra-long metal nanowires and their facile fabrication have been long sought after as they promise to offer substantial improvements of performance in numerous applications. However, ultra-long metal ultrafine/nanowires are beyond the capability of current manufacturing techniques, which impose limitations on their size and aspect ratio. Here we show that the limitations imposed by fluid instabilities with thermally drawn nanowires can be alleviated by adding tungsten carbide nanoparticles to the metal core to arrive at wire lengths more than 30 cm with diameters as low as 170 nm. The nanoparticles support thermal drawing in two ways, by increasing the viscosity of the metal and lowering the interfacial energy between the boron silicate and zinc phase. This mechanism of suppressing fluid instability by nanoparticles not only enables a scalable production of ultralong metal nanowires, but also serves for widespread applications in other fluid-related fields.
journal_name
Nat Communjournal_title
Nature communicationsauthors
Hwang I,Guan Z,Cao C,Tang W,Chui CO,Li Xdoi
10.1038/s41467-020-19796-5subject
Has Abstractpub_date
2020-11-23 00:00:00pages
5932issue
1issn
2041-1723pii
10.1038/s41467-020-19796-5journal_volume
11pub_type
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