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UBC Theses and Dissertations
Temperature dependence of photoluminescence of the dilute nitride semiconductor GaNA̜s₁₋ Beaton, Daniel A.
Abstract
The design of a closed cycle optical cryostat for semiconductor crystal
characterization is discussed. The system designed and developed is capable
of performing photoluminescence, resistivity, and Hall measurements as a
function of temperature from 10 K to higher than 300 K. Preliminary photoluminescence
experiments are carried out as a test of the system. Results
from the photoluminescence measurements show evidence for the existence
of nitrogen clusters in GaNxAsi_x. The clusters are shown to produce states
with energies inside the band gap. It has also been found that the introduction
of bismuth, as a surfactant, during the growth process tends to reduce
the density of the nitrogen clusters in the material.
Item Metadata
| Title |
Temperature dependence of photoluminescence of the dilute nitride semiconductor GaNA̜s₁₋
|
| Creator | |
| Publisher |
University of British Columbia
|
| Date Issued |
2003
|
| Description |
The design of a closed cycle optical cryostat for semiconductor crystal
characterization is discussed. The system designed and developed is capable
of performing photoluminescence, resistivity, and Hall measurements as a
function of temperature from 10 K to higher than 300 K. Preliminary photoluminescence
experiments are carried out as a test of the system. Results
from the photoluminescence measurements show evidence for the existence
of nitrogen clusters in GaNxAsi_x. The clusters are shown to produce states
with energies inside the band gap. It has also been found that the introduction
of bismuth, as a surfactant, during the growth process tends to reduce
the density of the nitrogen clusters in the material.
|
| Extent |
8506096 bytes
|
| Genre | |
| Type | |
| File Format |
application/pdf
|
| Language |
eng
|
| Date Available |
2009-10-30
|
| Provider |
Vancouver : University of British Columbia Library
|
| Rights |
For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use.
|
| DOI |
10.14288/1.0084821
|
| URI | |
| Degree (Theses) | |
| Program (Theses) | |
| Affiliation | |
| Degree Grantor |
University of British Columbia
|
| Graduation Date |
2003-11
|
| Campus | |
| Scholarly Level |
Graduate
|
| Aggregated Source Repository |
DSpace
|
Item Media
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Rights
For non-commercial purposes only, such as research, private study and education. Additional conditions apply, see Terms of Use https://open.library.ubc.ca/terms_of_use.