Ultrafast structural evolution and formation of linear carbon chains in single-walled carbon nanotube networks by femtosecond laser irradiation
SCIE
SCOPUS
- Title
- Ultrafast structural evolution and formation of linear carbon chains in single-walled carbon nanotube networks by femtosecond laser irradiation
- Authors
- HA, JEONGHONG; Jung, H.Y.; Hao, J.; Li, B.; Raeliarijaona, A.; Alarcon, J.; Terrones, H.; Ajayan, P.M.; Jung, Y.J.; Kim, J.; Kim, D.
- Date Issued
- 2017-09
- Publisher
- Royal Society of Chemistry
- Abstract
- Inter-allotropic structural transformation of sp2 structured nanocarbon 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 femtosecond 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. ? 2017 The Royal Society of Chemistry.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/50749
- DOI
- 10.1039/c7nr05883g
- ISSN
- 2040-3364
- Article Type
- Article
- Citation
- Nanoscale, vol. 9, no. 43, page. 16627 - 16631, 2017-09
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