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Fabrication and characterization of a micro-fabricated linear array of electrospray emitters intended for space thruster applications

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3 Author(s)
L. F. Velasquez-Garcia ; Electr. Eng. & Comput. Sci., MIT, Cambridge, MA, USA ; A. I. Akinwande ; M. Martinez-Sanchez

This paper reports the design, fabrication, and experimental characterization of a microfabricated, internally-fed linear array of electrospray emitters intended for space propulsion applications. The engine uses highly doped formamide as propellant, with electrical conductivity in the 0.3 - 3.0 S/m range. The electrospray array operates in the single Taylor cone droplet emission regime, and it requires about 2000 V to become activated. The reported device demonstrates the feasibility of high clustering of the electrospray emitters.

Published in:

2005 International Vacuum Nanoelectronics Conference

Date of Conference:

10-14 July 2005