Abstract
Electrospray deposition utilizes a high electric field to extract liquid droplets from a capillary nozzle. In this contribution we demonstrate non-contact droplet deposition by electrospray from atomic force microscopy (AFM) probes with a fully integrated microfluidic system, so called FluidFM probes. Electrospray experiments were performed using probes with a pyramidal tip with a sub-micron size aperture in a dedicated setup. The onset voltage as function of the gap between the probe tip and the substrate was measured and compared with a numerical model. Onset voltages in the range 360-410 V were found at 8.5 μm gap height. We observed a reduction in onset voltage with an increase in external pressure. Wetting of the outside of the tip could be reduced by applying a fluorocarbon coating.
Original language | Undefined |
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Title of host publication | 27th IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2014 |
Place of Publication | San Francisco |
Publisher | IEEE |
Pages | 100-103 |
Number of pages | 4 |
ISBN (Print) | 978-1-4799-3508-6 |
DOIs | |
Publication status | Published - 26 Jan 2014 |
Event | 27th IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2014 - San Francisco, United States Duration: 26 Jan 2014 → 30 Jan 2014 Conference number: 27 |
Publication series
Name | |
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Publisher | IEEE |
Conference
Conference | 27th IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2014 |
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Abbreviated title | MEMS |
Country/Territory | United States |
City | San Francisco |
Period | 26/01/14 → 30/01/14 |
Keywords
- EWI-24827
- Nano Fountain Pen
- Liquid Deposition
- METIS-304123
- IR-91352
- Atomic Force Microscopy
- Electrospray