Analysis of Electrospraying as an On-demand Deposition Method

Title

Analysis of Electrospraying as an On-demand Deposition Method

 Author

Stachewicz, U.

Contributor

Sudhölter, E.J.R. (promotor)
Schmidt-Ott, A. (promotor)

Faculty

Applied Sciences

 Department

DelftChemTech

 Date

2010-05-12

 Abstract

The goal of this thesis was to investigate the stability regime for electrospraying events. First of all, we wanted to use electrospraying as an on-demand volume deposition technology. For this purpose, a well controlled and precise liquid ejection was obtained. Instead of generating a continuous spray with constant flow rate or a constant stream of droplets we have tuned the driving of the electrospraying process in such a way that we were able to generate well controlled single event electrospraying (SEE) with short voltage pulses. In order to have a controlled process for depositing small amounts of liquids, we considered the fundamentals of the electrospraying mechanism. In particular, we explained what happens during the voltage pulse from the hydrodynamic and electrodynamic perspective to understand how the amount and the timing of a deposition can be controlled. Finally, we proved via theoretical and experimental study that SEE can be generated for water as well. SEE can be used in the industrial and research fields were the deposition methods of small amounts of liquids is significant, such as biosensor technology, microfluidics applications and in the production of micro-electronics.

 Subject

electrospraying

 To reference this document use:

http://resolver.tudelft.nl/uuid:04ca390c-c173-4eb4-815e-987dc3be403f

 Embargo date

2010-04-19

 ISBN

9789461130075

 Part of collection

Institutional Repository

 Document type

doctoral thesis

 Rights

(c) 2010 Stachewicz , U.
Files
PDF Stachewicz-thesiscover_2010.pdf 71.72 MB
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