Experimental and Theoretical Study of High Current Density Novel Emitter Sources.
Abstract
Theoretical study during this grant period focused on solvable but realistic models of sharp metallic microtips to investigate the significance of curvature on tbe current voltage characteristics, the field emitted electron distributions (FEED) and the thermal stability of these emitters operating in high fields and temperatures. Field electron energy distributions have been calculated for hyperbolidal, paraboloidal and conical models of ultrasharp tips. A calculation was completed for the local density of states (LDOS) of a single atom discrete tip model. The charge simulation method was used to calculate tbe capacitance of a model diode consisting of a rounded conical tip and an annular ring a distance d above the tip.
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 01, 1996
- Accession Number
- ADA305491
Entities
People
- Paul H. Cutler
Organizations
- Pennsylvania State University