Temperature Dependence of the Work Function of Cu Layers on a W(110) Plane,

Abstract

In the course of following the thermal desorption of CO adsorbed on Cu layers on W(110), i.e. W(110)/Cun/C0 by work function changes a substantial temperature coefficient of work function was noted for the substrates and investigated in some detail. Temperature coefficients of work function for Cu layers in the range 0 < or = 6 where n is the number of monolayers were measured from 90-500 K by a Kelvin probe method. d phi/d sub T is negative at all coverages and has a strong maximum of -.00015 ev/K at n = 1 at 90 K. A qualitative discussion of these findings is given. The design and operating characteristics of the Kelvin probe are also described.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 1985
Accession Number
ADA162573

Entities

People

  • Robert Gomer

Organizations

  • University of Chicago

Tags

Communities of Interest

  • Air Platforms

DTIC Thesaurus Topics

  • Adsorbates
  • Amplifiers
  • Coefficients
  • Desorption
  • Dipole Moments
  • Electrons
  • Field Emission
  • Frequency
  • Measurement
  • Metals
  • Monomolecular Films
  • Schematic Diagrams
  • Stainless Steel
  • Temperature Coefficients
  • Two Dimensional
  • Vacuum
  • Work Functions

Readers

  • Electrochemical Engineering/ Fuel Cell Technologies