The Fabrication and Characteristics of YB sub 2 Cu sub 3 O sub 7-x /W and Y sub 2 O sub 3 /W Field Emitters

Abstract

The Y2O3/W and YBa2CU3O7-x/W field emitters have been fabricated and the corresponding field emission patterns have been obtained. For the same dimensions and parameters, the field emission current of Y2O3/W is higher and more stable than that of W tip. By measuring field emission currents and voltages and plotting the data in accordance with the Fowler-Nordheim equation, the work function of YBa2CU3O7-x/W was found to be 4.1eV at room temperature. Thermal Field Emission (TFE) can be applied to obtain high intensity brightness and, therefore, has been under scientific study in recent years. The choice of appropriate materials for the fabrication of the field emitter is an important topic in the study of thermal field emission. Keywords: Chinese translations.

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Document Details

Document Type
Technical Report
Publication Date
Sep 24, 1990
Accession Number
ADA227561

Entities

People

  • Hui Xu
  • Xi-liang Yang
  • Xiang-qi Jiang

Organizations

  • National Air and Space Intelligence Center

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Crystal Structure
  • Crystals
  • Electron Emission
  • Electrons
  • Emission
  • Emitters
  • Equations
  • Fabrication
  • Field Emission
  • Foreign Technology
  • Heat Energy
  • Heat Treatment
  • Heating
  • High Temperature
  • Materials
  • Metallic Compounds
  • Work Functions

Readers

  • Electronics Engineering
  • Pulsed Power and Plasma Physics.
  • Thermal Physics or Thermal Science.