Studies of Cd1-xZnxTe Bulk Crystals Prepared by Temperature
碩士 === 國立交通大學 === 物理研究所 === 84 === In this work, we use the temperature gradient solution growth method to growCd1-xZnxTe bulk crystals and study the vibrational modes in the Cd1-xZnxTe bulkcrystals with Raman scattering measurement. T...
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| Other Authors: | |
| Format: | Others |
| Language: | zh-TW |
| Published: |
1996
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| Online Access: | http://ndltd.ncl.edu.tw/handle/63210355579895554413 |
| Summary: | 碩士 === 國立交通大學 === 物理研究所 === 84 === In this work, we use the temperature gradient solution
growth method to growCd1-xZnxTe bulk crystals and study the
vibrational modes in the Cd1-xZnxTe bulkcrystals with Raman
scattering measurement. The frequencies of Zone-centeroptical
phonons of the Cd1-xZnxTe (bulk crystals and epilayers) exhibit
two-mode behavior and are well described by the modified random-
element isodisplace-ment model. Several important physical
parameters are deduced from the fits to the composition
dependence of the lattice vibrations. On the other hand, we
also have a primitive analysis of the phenomenon of oxidization
of Cd1-xZnxTe bulk crystal. We find that the thickness of oxide
on the surface of Cd1-xZnxTe is about 100 Angstrom if the sample
was put in theair for a long time and the major oxide of Cd1-
xZnxTe is TeO2 while the concen-tration of Zn is small and is
ZnO while the concentration of Zn is large.
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