Inkjet-Based Deposition of Micro/Nano-Objects on Functional Surfaces - Controlling and Exploiting Self-Assembly across Length-Scales

In this project, we intend to use inkjet-based delivery of functional liquid droplets on pre-structured surfaces for the directed (self-)assembly of micro/nano-objects as experimental platform to build up and validate multi-level models of micro-droplet deposition, spanning from simple equations of motion to realistic, computationally intensive simulations. Furthermore, we aim to exploit these simulations to achieve the computer-aided design of functional surfaces that improve the precision of final position of liquid droplets. Indeed, a careful design of certain properties of the micro-pattern surface may allow a significant improvement in the droplet alignment accuracy (from about 20 um without micro-pattern to less than 10um with micro-pattern). Surface wetting properties as well as the geometrical shape of the micro-pattern are design choices. They can be shaped by appropriate geometry, topography, and coatings. These properties in combination perhaps with active, real-time control can be used to fine tune droplets’ trajectories and final positions. Potential applications are in the field of organic electronics, flexible microsystems, and microfluidic systems for diagnostic and health-care applications.


Presented at:
LEA Laboratoire Européen Associé en Microtechnique, France, 12-13 Sept, 2006,
Year:
2006
Laboratories:


Note: The status of this file is: EPFL only


 Record created 2006-09-22, last modified 2018-03-18

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