Type

Journal Article

Authors

D Brabazon
M Vázquez
A Stalcup
M. Wang
R. McCann
K Bagga

Subjects

Physics

Topics
ink jet printing optical properties surface chemistry raman spectroscopy fourier transform laser ablation laser applications size distribution

Laser assisted synthesis of carbon nanoparticles with controlled viscosities for printing applications. (2014)

Abstract High-quality carbon nanoparticles with controlled viscosity and high aqueous stability were prepared by liquid-phase laser ablation of a graphite target in deionized water. The size distribution was found to vary from 5nm to 50nm with mean size of 18nm, in the absence of any reducing chemical reagents. Efficient generation of short chain polyynes was recorded for high laser repetition rates. Homogeneous and stable nanoparticle suspensions with viscosities ranging from 0.89 to 12mPa.s were obtained by suspending the nanoparticles in different solvent mixtures such as glycerol-water and isopropanol-water. Optical properties were investigated by absorption and photoluminescence spectroscopy. Raman spectroscopy confirmed graphitic-like structure of nanoparticles and the surface chemistry was revealed by Fourier-transform infrared spectroscopy demonstrating sufficient electrostatic stabilization to avoid particle coagulation or flocculation. This paper present an exciting alternative method to engineer carbon nanoparticles and their potential use as a ligand-free nano-ink for ink jet printing (jetting) applications.
Collections Ireland -> Dublin City University -> PubMed

Full list of authors on original publication

D Brabazon, M Vázquez, A Stalcup, M. Wang, R. McCann, K Bagga

Experts in our system

1
Dermot Brabazon
Dublin City University
Total Publications: 162
 
2
Mercedes Vázquez
Dublin City University
Total Publications: 4
 
3
Apryll Stalcup
Dublin City University
Total Publications: 7
 
4
Ronan McCann
Dublin City University
Total Publications: 10
 
5
Komal Bagga
Dublin City University
Total Publications: 9