CUED Publications database

Imbibition dynamics of nano-particulate ink-jet drops on micro-porous media

Hsiao, WK and Hoath, SD and Martin, GD and Hutchings, IM and Chilton, NB and Jones, S (2011) Imbibition dynamics of nano-particulate ink-jet drops on micro-porous media. Technical Proceedings of the 2011 NSTI Nanotechnology Conference and Expo, NSTI-Nanotech 2011, 2. pp. 566-569.

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Ink-jet printing of nano-metallic colloidal fluids on to porous media such as coated papers has become a viable method to produce conductive tracks for low-cost, disposable printed electronic devices. However, the formation of well-defined and functional tracks on an absorbing surface is controlled by the drop imbibition dynamics in addition to the well-studied post-impact drop spreading behavior. This study represents the first investigation of the real-time imbibition of ink-jet deposited nano-Cu colloid drops on to coated paper substrates. In addition, the same ink was deposited on to a non-porous polymer surface as a control substrate. By using high-speed video imaging to capture the deposition of ink-jet drops, the time-scales of drop spreading and imbibition were quantified and compared with model predictions. The influences of the coating pore size on the bulk absorption rate and nano-Cu particle distribution have also been studied.

Item Type: Article
Uncontrolled Keywords: Drop deposition High-speed imaging Imbibition Ink-jet Nano-copper colloid
Divisions: Div E > Production Processes
Depositing User: Cron job
Date Deposited: 16 Jul 2015 13:42
Last Modified: 29 Nov 2015 09:38