Abstract

Boron has been adsorbed onto molybdenum field emitter surfaces by the thermal decomposition of boron triiodide at corrected partial pressures of 1.4 x 10-9 Torr to 4.5 x 10-9 Torr. Based on field emission work function data and an analytical work function versus adsorbate-coverage relationship, a quantitative measure of the monolayer coverage of boron on molybdenum has been determined; this value is 6.3 x 1014 atoms/cm2/monolayer. A parameter, β, is defined which is a measure of the effective yield of adsorbed boron on molyb-denum from BI3. β is formulated in terms of the free energy of dissociation of the BI3 molecule on and the free energy of desorption of the BI3 molecule from the molybdenum surface. These energies were determined from the data to be -34.4 ± 2 kcal/mole and 4.5 ± 4 kcal/mole, respectively. © 1974 The Japan Society of Applied Physics.

Department(s)

Materials Science and Engineering

International Standard Serial Number (ISSN)

1347-4065; 0021-4922

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2023 IOP Publishing, All rights reserved.

Publication Date

01 Jan 1974

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