University of Illinois Urbana-Champaign

Optical absorption measurements on silver halides in the ultraviolet and extreme ultraviolet energy ranges

Carrera, Nicholas John

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https://hdl.handle.net/2142/25852

Description

Title
Optical absorption measurements on silver halides in the ultraviolet and extreme ultraviolet energy ranges
Author(s)
Carrera, Nicholas John
Issue Date
1970
Doctoral Committee Chair(s)
Brown, Frederick C.
Department of Study
Physics
Discipline
Physics
Degree Name
Ph.D.
Degree Level
Dissertation
Keyword(s)
  • optical absorption
  • silver halides
  • ultraviolet
  • extreme ultraviolet
  • thin film transmission
Language
en
Abstract
The absorption coefficients of silver chloride and silver bromide have been determined from thin film transmission measurements in the range of photon energy from 3.5 to 6.7 electron volts and from 30 to 240 electron volts. An unusual feature of this work is the use of electron synchrotron radiation for measurements in the high energy range. Optical constants have been calculated over the extended energy range, 3.5 to 240 electron volts. Band gaps have been estimated from the ultraviolet energy data and exciton binding energies. Comparison of ultraviolet structure and extreme ultraviolet structure, and measurements taken at different temperatures give evidence that in the high energy region exciton absorption is insignificant compared to absorption due to band-to-band transitions. A discussion of the conduction band structure of silver chloride is also given.
Type of Resource
text
Permalink
http://hdl.handle.net/2142/25852
Copyright and License Information
1970 Nicholas John Carrera

Owning Collections

Dissertations and Theses - Physics
Dissertations in Physics
Graduate Dissertations and Theses at Illinois PRIMARY
Graduate Theses and Dissertations at Illinois