Study of composite cathodes in electron field emission devices : Relative contributions of resonant and sequential tunneling

Research output: Chapters, Conference Papers, Creative and Literary Works (RGC: 12, 32, 41, 45)32_Refereed conference paper (with ISBN/ISSN)peer-review

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Author(s)

  • Valeriu Filip
  • Hei Wong
  • Wing-Shan Tam
  • Chi-Wah Kok

Detail(s)

Original languageEnglish
Title of host publication2016 5th International Symposium on Next-Generation Electronics, ISNE 2016
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Print)9781509024391
Publication statusPublished - 12 Aug 2016
Externally publishedYes

Conference

Title5th International Symposium on Next-Generation Electronics, ISNE 2016
PlaceTaiwan
CityHsinchu
Period4 - 6 May 2016

Abstract

A simple model of a hetero-structured cathode for electron field emission was developed in order to compare resonant and sequential electron field emission currents. These two components were simultaneously computed through an iterative process. The model assumes that a certain fraction of the batch of electrons that failed to resonantly transit the structure will end up in its quasi-bound states. It was found that, while various slope changes appear in both current-field characteristics, for the sequential tunneling emission, such features are merely interference effects occurring in the potential energy barrier, prior to the electron's transition in the quasi-bound states. Thus, various space charges develop in the structure and reacts back on both the sequential and the resonant parts of the current.

Research Area(s)

  • electron field emission, resonant tunneling, sequential tunneling

Citation Format(s)

Study of composite cathodes in electron field emission devices : Relative contributions of resonant and sequential tunneling. / Filip, Valeriu; Wong, Hei; Tam, Wing-Shan; Kok, Chi-Wah.

2016 5th International Symposium on Next-Generation Electronics, ISNE 2016. Institute of Electrical and Electronics Engineers Inc., 2016. 7543403.

Research output: Chapters, Conference Papers, Creative and Literary Works (RGC: 12, 32, 41, 45)32_Refereed conference paper (with ISBN/ISSN)peer-review