Computer simulation of field emission devices with focusing structure

Y. C. 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

Abstract

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
Pages (from-to)244
Number of pages1
JournalIEEE International Conference on Plasma Science
StatePublished - 1999
EventThe 26th IEEE International Conference on Plasma Science (ICOPS99) - Monterey, CA, USA
Duration: 20 Jun 199924 Jun 1999

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