Accession Number:

AD0625169

Title:

EFFECTS OF EXPERIMENTAL PARAMETERS ON THERMOLUMINESCENCE OF A TYPE II-A DIAMOND.

Descriptive Note:

Physical sciences research papers,

Corporate Author:

AIR FORCE CAMBRIDGE RESEARCH LABS L G HANSCOM FIELD MASS

Personal Author(s):

• Johnson,Albert D.
• Littler,James R.

Report Date:

1965-10-01

Pagination or Media Count:

40.0

Abstract:

Thermoluminescence provides a method for studying properties of those crystalline imperfections which behave as electron traps and recombination centers in wide bandgap materials. This approach, however, has been used relatively little, possibly due to the fact that the shapes and intensities of thermoluminescent glow curves are functions of several experimental parameters and are often complicated by the overlapping of a number of individual glow peaks. In the present work, experimental parameters were isolated and some of their effects on thermoluminescent glow curves were analyzed. This yielded information on activation energies associated with trapping levels, the nature of the kinetics involved in electron transitions, and electron retrapping. A Type II-a diamond, which has a wide distribution of thermoluminescent glow peaks, was used in this work. Author

Descriptors:

• (*CRYSTAL DEFECTS
• LUMINESCENCE)
• (*DIAMONDS
• CRYSTAL DEFECTS)
• HEAT OF ACTIVATION
• ELECTRON TRANSITIONS
• CRYSTALS
• ELECTRON CAPTURE
• THERMAL CONDUCTIVITY
• RECOMBINATION REACTIONS

Subject Categories:

• Crystallography
• Solid State Physics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE