Graduate Thesis Or Dissertation
 

Surface effects in photoemmission from sodium

Public Deposited

Downloadable Content

Download PDF
https://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/5x21tj99g

Descriptions

Attribute NameValues
Creator
Abstract
  • An investigation was made of the photoelectric emission from sodium and the alteration in the emission produced by sulfur deposited onto a sodium surface. Measurements were made at the temperature of liquid nitrogen for photon energies between 2.0 ev and 4.5 ev. The sodium was investigated in the form of films produced by vacuum deposition at pressures in the low 10⁻¹⁰ Torr range. The amounts of sodium and sulfur deposited were determined using a quartz oscillator microbalance. Results obtained for the photoemissive yield from sodium were interpreted as indicating a work function of approximately 2.75 ev. The threshold dependence of this emission was not fit by the Fowler theory. Sodium surfaces on which sulfur had been deposited exhibited altered work functions and a different threshold dependence. The alteration of the emission was studied as a function of the amount of sulfur deposited. Threshold reductions to about 2.0 ev were obtained. The emission also exhibited a yield maximum at an energy which was altered by sulfur deposited on the surface. The behavior of this yield maximum as sulfur was deposited, and its location for uncontaminated surfaces, allowed the origin of the maximum to be attributed to the surface plasmon.
Resource Type
Date Available
Date Issued
Degree Level
Degree Name
Degree Field
Degree Grantor
Commencement Year
Advisor
Academic Affiliation
Non-Academic Affiliation
Subject
Rights Statement
Publisher
Peer Reviewed
Language
Digitization Specifications
  • File scanned at 300 ppi (Monochrome, 8-bit Grayscale) using ScandAll PRO 1.8.1 on a Fi-6770A in PDF format. CVista PdfCompressor 5.0 was used for pdf compression and textual OCR.
Replaces

Relationships

Parents:

This work has no parents.

In Collection:

Items

Thumbnail Title Date Uploaded Visibility Actions
file details WhitefieldRodneyJ1970.pdf 2017-08-23 Public Download