Ultrafast structural evolution and formation of linear carbon chains in single-walled carbon nanotube networks by femtosecond laser irradiation
- Authors
- Ha, Jeonghong; Jung, Hyun Young; Hao, Ji; Li, Bo; Raeliarijaona, Aldo; Alarcon, Jorge; Terrones, Humberto; Ajayan, Pulickel M.; Jung, Yung Joon; Kim, Jaegu; Kim, Dongsik
- Issue Date
- 21-Nov-2017
- Publisher
- ROYAL SOC CHEMISTRY
- Citation
- NANOSCALE, v.9, no.43, pp.16627 - 16631
- Indexed
- SCIE
SCOPUS
- Journal Title
- NANOSCALE
- Volume
- 9
- Number
- 43
- Start Page
- 16627
- End Page
- 16631
- URI
- https://scholarworks.bwise.kr/gnu/handle/sw.gnu/13342
- DOI
- 10.1039/c7nr05883g
- ISSN
- 2040-3364
- Abstract
- Inter-allotropic structural transformation of sp(2) structured nano-carbon is a topic of fundamental and technological interest in scalable nanomanufacturing. Such modifications usually require extremely high temperature or high-energy irradiation, and are usually a destructive and time-consuming process. Here, we demonstrate a method for engineering a molecular structure of single-walled carbon nanotubes (SWNTs) and their network properties by femto-second laser irradiation. This method allows effective coalescence between SWNTs, transforming them into other allotropic nanocarbon structures (double-walled, triple-walled and multi-walled nanotubes) with the formation of linear carbon chains. The nanocarbon network created by this laser-induced transformation process shows extraordinarily strong coalescence induced mode in Raman spectra and two-times enhanced electrical conductivity. This work suggests a powerful method for engineering sp2 carbon allotropes and their junctions, which provides possibilities for next generation materials with structural hybridization at the atomic scale.
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