Field emission dependence on nanogap separation in surface conduction electron-emitter display

Yiming Li*, Yi Ting Kuo, Hsiang Yu Lo, Hui Wen Cheng, Ta Ching Yeh, Chih Hong Hwang, Mei Tsao Chiang, Chi Neng Mo

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

Nanogap nowadays is fascinating in surface conduction electron-emitters (SCEs) for electron sources of the flat panel displays (FPDs). Surface conduction electron-emitter display (SED) is one of new type FPDs based on the SCEs. The nanogap fabricated by focused ion beam was studied, but the extremely narrow fissure complicated its fabrication. Palladium hydrogenation nanogaps have thus been proposed as a novel surface conduction electron-emitters for it low turn-on voltage, high emission current, high focused capability, and high emission efficiency. In this work, we investigate effects of nanogap separation width of the palladium hydrogenation nanogaps on the field emission efficiency using a finite-difference time domain particle-in-cell simulation method. The result of this study shows as the gap width increases, the field emission efficiency grows due to the larger space allows the particles attracted to the anode plate instead of attracting by the opposite electrode. Moreover, the study shows the better emission efficiency can be achieved under wider gap width, which reduces the difficulty of the fabrication.

Original languageEnglish
Title of host publication2008 8th IEEE Conference on Nanotechnology, IEEE-NANO
Pages81-84
Number of pages4
DOIs
StatePublished - 2008
Event2008 8th IEEE Conference on Nanotechnology, IEEE-NANO - Arlington, TX, United States
Duration: 18 Aug 200821 Aug 2008

Publication series

Name2008 8th IEEE Conference on Nanotechnology, IEEE-NANO

Conference

Conference2008 8th IEEE Conference on Nanotechnology, IEEE-NANO
CountryUnited States
CityArlington, TX
Period18/08/0821/08/08

Keywords

  • FDTDPIC simulation
  • Field emission
  • Nanogap
  • Separation effect

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