Accession Number:

ADA156117

Title:

Electron Irradiation of n Type Cadmium Telluride.

Descriptive Note:

Master's thesis,

Corporate Author:

NAVAL POSTGRADUATE SCHOOL MONTEREY CA

Personal Author(s):

Report Date:

1985-03-01

Pagination or Media Count:

75.0

Abstract:

An experiment is described in which 30 MeV electrons were used to irradiate a sample of cadmium telluride. A brief history of irradiation studies of cadmium telluride is given, followed by the description of the construction of a laboratory used in the taking of Hall measurements and resistivity versus temperature data. The irradiation was performed at the Naval Postgraduate School linear accelerator facility and damage was observed in the CdTe sample at doses above 10 to the 13th power electronssq cm. The sample was held at 100 K for the irradiation. Three results were noted from the Hall and resistivity data. First, the resistivity increased by a factor of two at radiation doses of 10 to the 15th power electronssq cm. Secondly there was a ten percent lowering of the electron mobility at 77 K. Finally, possible annealing was seen at 160 K for the 10 to the 13th power electronssq cm dose resistivity versus temperature graph. Photoluminescence measurements confirmed the existence of damage by an increase of a broad maximum associated with defects. Additional keywords radiation effects bulk semiconductors photoconductivity infrared semiconductor detectors computer programs. Author.

Subject Categories:

  • Electrical and Electronic Equipment
  • Radioactivity, Radioactive Wastes and Fission Products
  • Solid State Physics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE