Techniques for optimizing nanotips derived from frozen taylor cones
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Dec 5, 2017
Issued Date -
N/A
app pub date -
Nov 28, 2016
filing date -
Nov 7, 2013
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
Optimization techniques are disclosed for producing sharp and stable tips/nanotips relying on liquid Taylor cones created from electrically conductive materials with high melting points. A wire substrate of such a material with a preform end in the shape of a regular or concave cone, is first melted with a focused laser beam. Under the influence of a high positive potential, a Taylor cone in a liquid/molten state is formed at that end. The cone is then quenched upon cessation of the laser power, thus freezing the Taylor cone. The tip of the frozen Taylor cone is reheated by the laser to allow its precise localized melting and shaping. Tips thus obtained yield desirable end-forms suitable as electron field emission sources for a variety of applications. In-situ regeneration of the tip is readily accomplished. These tips can also be employed as regenerable bright ion sources using field ionization/desorption of introduced chemical species.
First Claim
Family
International Classification(s)
- H01J:ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- C23C:COATING METALLIC MATERIAL; COATING MATERIAL WITH M....
- C25D:PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC ....
- G21K:TECHNIQUES FOR HANDLING PARTICLES OR ELECTROMAGNET....
- H05G:X-RAY TECHNIQUE
- B21C:MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PR....
- [Classification Symbol]
- [Patents Count]
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully