Computer simulation of field emission devices with focusing structure

Yung-Chiang Lan, S. H. Chen, J. H. Tsai, T. L. Lin, Y. Hu, J. T. Lai, C. M. Lin, C. H. Wan, W. C. Wang

Research output: Contribution to journalConference articlepeer-review


Beam focusing is a crucial technique for promoting the resolution of the field-emission displays. Various focusing structures for the Spindt-type field emission device have been proposed and applied on previous works, e.g. coaxial-type focusing, coplanar-type focusing, ridge-type focusing, and mesh-electrode focusing. The diamond-film coating provides another possibility to design new types of field emission devices with inherently smaller beam size. The planar-type and concave-lens-type cathodes are examples. In this study, diamond-film-coated field emitters with different emitting shapes are proposed and simulated by the MAGIC particle-in-cell code. The focusing effect inherent in the emitting shape will be characterized and analyzed. The traditional Spindt-type devices with various focusing structures are also studied for comparisons. The electron trajectories, the spot sizes of beams, and I-V curves are investigated systematically for each device.

Original languageEnglish
Number of pages1
JournalIEEE International Conference on Plasma Science
Publication statusPublished - 1999 Dec 1
EventThe 26th IEEE International Conference on Plasma Science (ICOPS99) - Monterey, CA, USA
Duration: 1999 Jun 201999 Jun 24

All Science Journal Classification (ASJC) codes

  • Atomic and Molecular Physics, and Optics
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

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