Abstract
All-carbon single-walled carbon nanotubes (SWCNTs) were successfully synthesized, nucleated using a fullerene derivative. A systematic investigation into the initial preparation of C60 fullerenes as growth nucleators for the SWCNTs was conducted. Enhancement in the yield of the produced SWCNT has been achieved with exploring different dispersing media for the fullerenes, the period, and environment of the initial thermal treatment of the fullerenes in addition to the use of different fullerene-based structures. The systematic studies significantly advance our understanding of the growth of the all-carbon catalyst-free single-walled carbon nanotubes. Field-effect transistors were fabricated using the catalyst-free SWCNT and then electrically characterized, showing current capacity as high as the well-studied catalyst-assisted nanotubes.
Highlights
Enormous efforts have been invested towards the realization of single-walled carbon nanotube (SWCNT)based products due to their extraordinary properties [1,2]
We systematically investigate aspects related to yield from metal-free horizontally oriented SWCNTs nucleated from pristine C60 fullerenes and exohedrally functionalized C60F18 fullerenes
The treated and activated fullerene derivatives were successfully used to nucleate the single-walled carbon nanotubes grown by chemical vapor deposition
Summary
Enormous efforts have been invested towards the realization of single-walled carbon nanotube (SWCNT)based products due to their extraordinary properties [1,2]. One of the more attractive potential applications of these exciting nanostructures is as a building block for nanoelectronics. To this end, individual or parallelaligned SWCNTs with tunable yield are important [3,4]. Individual or parallelaligned SWCNTs with tunable yield are important [3,4] For such applications, the reproducible control of the nanotubes’ spatial orientation and chiral management still require further development [5]. A catalyst particle (mostly metal catalyst particles) are used to nucleate the growth of the nanotubes, and this has a drawback since the catalyst particles may diffuse into the substrate or tube and affect their intrinsic properties or that of a
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