Abstract
Two monodisperse nano-suspensions, which contain 20-nm and 120-nm silica particles (30 wt.%), were electrohydrodynamically jetted simultaneously in coaxial needles. Irrespective of which suspension was in the inner or outer needle, the cone-jet mode was obtained and the droplets resulting from jet break-up were used to direct write ∼80 µm lines. Turbulent flow in the cones ensured that the suspensions were subjected to intense mixing and therefore the microstructure contains a random mixture of the two types of nanoparticles of unchanged morphology.
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Acknowledgements
DZW wishes to thank the Materials Department at Queen Mary, University of London for awarding him a doctoral scholarship.
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Wang, D.Z., Jayasinghe, S.N., Edirisinghe, M.J. et al. Coaxial electrohydrodynamic direct writing of nano-suspensions. J Nanopart Res 9, 825–831 (2007). https://doi.org/10.1007/s11051-006-9130-5
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DOI: https://doi.org/10.1007/s11051-006-9130-5