Nonstoichiometry and defects in III–V compounds
✍ Scribed by Vladimir P. Zlomanov
- Publisher
- Elsevier Science
- Year
- 2003
- Tongue
- English
- Weight
- 185 KB
- Volume
- 6
- Category
- Article
- ISSN
- 1369-8001
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✦ Synopsis
The deviation from stoichiometry or nonstoichiometry characterises a homogeneity range of chemical compounds. It is determined as the difference in the nonmetal-to metal atoms ratio between a real A n B mþd (d > o0) and stoichiometric A n B m composition. Nonstoichiometry creates defects which have an effect on all properties of a crystal. The classification of defect is given. The enthalpies and entropies of quasi-chemical reactions describing the defects composition of III-V compounds are presented and give the possibility to estimate the concentration of the major defects for the solubility limits of III-V compounds.
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